Question

1. 4x + 3 = x-15
2. 4(x + 7) - 15 = 3x
3. 3(2x - 7) - 5(x - 2) = 2x - 4
dau test ajutatima​

Answer 1

Răspuns:

4x+3=x-15

4x-x=-3-15

3x=-18

c=-6

4(x+7)-15=3x

4x+28-15=3x

4x+13=3x

4x-3x=-13

x=-13

3(2x-7)-5(x-2)=2x-4

6x-21-5x+10=2x-4

x-11=2x-4

x= -7