Question

x – 4 = 3
x – 5 = x + 1
x + x – 4 = 17 – 2x + 1
alguem ajuda

Answer 1

Resposta:

x – 4 = 3

X=3+4

X=7

x – 5 = x + 1

X+X= 1+5

2X= 6

X= 6 DIVIDIDO POR 2

X=3

x + x – 4 = 17 – 2x + 1

1X + 1X + 2X = 17 + 1 + 4

4X= 22

X= 22/4

X = 5,5