Question

−10x + 1 + 7x = 37

x = −15
x = −12
x = 12
x = 15

Answer 1

x = −12

Work: -10x + 1 + 7x = (−10+7)x + 1 = −3x + 1 = 37 → −3x = 36 → x = 36/−3 = −12.

Check: −10(−12)+1+7(−12)=120+1−84=37.