7x - 2x = 80
subtracting like terms,
5x = 80
divide both sides by 5
x = 16
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105
subtraction; 80-y= 52. 28+52 =80
4800, multiply 80 x 60. An easy way to solve this is to set up an equation. x/60 = 80. To solve for x, multiply both sides by 60. So then, its just 60 x 80 which is 4800
80
80/x = 0.76 80/.76 = x x = 105 questions