Question

Resolva as equações
A)2x+3x-x=16
B)7x-5=2x+25
C)x+8=-2x+20
D)9x+8=5x+24

Answer 1

Explicação passo-a-passo:

A)

2x + 3x — x = 16

5x — x = 16

4x = 16

x = 16/4

x = 4

B)

7x — 5= 2x + 25

7x — 2x = 25 + 5

5x = 30

x = 30/5

x = 6

C)

x + 8 = —2x + 20

x + 2x = 20 — 8

3x = 12

x = 12/3

x = 4

D)

9x + 8 = 5x + 24

9x — 5x = 24 — 8

4x = 16

x = 16/4

x = 4

Espero ter ajudado bastante!)