Question

D) 5x+7=4x14
E) 5x+7=4x+10
F) 17x-7x=x+18
G) x+x-4=17-2x+1

Answer 1

Explicação passo-a-passo:

Considerando 5x +7 = 4x + 14

d) 5x - 4x = 14 -7

x = +7

e) 5x -4x = 10 -7

x = +3

f) 10x - x = 18

9x = 18

x = 18/9

x= 2

g) 2x -4 = - 2x +18

2x + 2x = 18 +4

4x = 22

x = 22/4

22÷2

____=

4 ÷2

x= 11/2