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Mixed Exercises|
Exercise 1: 3x = -12
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Exercise 2: x - 19 = 52
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Exercise 3: 1/2 x = 3/4
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Exercise 4: x/7.23 = 0.86
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Exercise 5: x + 3/9 = 5
4/7
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Exercise 6: -15.67 x = -92.87
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Exercise 7: -9/7 x = 81
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Exercise 8: x + (-17) = -16.53
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Exercise 9: x/-12 = 3/8
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Exercise 10: x - 5/6 = 17
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Solutions
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Exercise 1: Divide both sides by 3
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x = -4
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Exercise 2: Rewrite the equation x + (-19) = 52
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Add
19 to both sides
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x = 71
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Exercise 3: The reciprocal of 1/2 is 2/1 or 2
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Multiply
both sides by 2
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x = 1
1/2
or 3/2
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Exercise 4: Multiply both sides by 7.23
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x = 6.2178
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Exercise 5 : Add -3/9 to both sides
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x = 5
5/21
or 110/21
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Exercise 6: Divide by -15.67
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x = -5.926611359
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Exercise 7: The reciprocal of -9/7 is -7/9
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Multiply
each side by -7/9
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x = -63
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Exercise 8: Add 17 to both sides
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x = 0.41
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Exercise 9: Multiply both sides by -12
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x = - 4
1/2
or -9/2
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Exercise 10: Rewrite the equation as x + (-5/6) = 17
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Add
5/6 to both sides
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x = 17
5/6
or 107/6
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