Question

a-) 5 (x+6)=2x-6. b-) 3 (x-2)=x-22

c-) 10 (2x-6)=4x+20

Answer 1

a) 5(x+6)= 2x-6
5x +30= 2x-6
5x=2x-6-30
5x= 2x-36
3x=-36
x= -36÷3
x= -12

b)3(x-2)= x-22
3x- 6= x-22
3x-x= -22+8
2x= -14
x= -14÷2
x= -7

c) 10(2x-6)= 4x+20
20x-60=4x+20
20x-4x= 20+60
16x= 80
x= 80÷16
x= 5