Question

Me ajudem por favor​

Answer 1

A)2x-3=17

2x=17+3

2x=20

x=20÷2

x=10

B)4x+7=x-8

4x-x=-8-7

3x= -15

x= -15÷3

x= -5

C)3-7 (1-2x)=5 (x-9)

3-6x-7+14x=5x-45

-6x+14x-5x= -45-4+7

3x= -42

x= -42÷3

x= -14

D)10x-9=21+2x+3x

10x-2x-3x=21+9

5x=30

x=30÷5

x=6