Question

4(×+1)=12
5(3-×)=4×+18
3(2×-1)=2(×+3)
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Answer 1

Resposta:

Explicação passo a passo:

4 (x+1) = 12

4x + 4 = 12

4x = 12-4

4x = 8

x = 8/4

x = 2

5(3-x) = 4x + 18

15 - 5x = 4x + 18

-5x - 4x = 18 - 15

-9x = 3

x = -3/9

x = -1/3

3(2x-1) = 2(x+3)

6x-3=2x+6

6x-2x=6+3

4x=9

x=9/4