Question

Calcule o valor de X faça a prova real

a) x + 30 = 40
b) 30 - 20 + 2x = 10
c) 3x - 10 + 13 = -2x + 28
d) 18x - 43 = 65
e) 2x = 16
f) x/2=-5​

Answer 1

Resposta:

a) x=10

b)x=0

c)x=5

d)x=6

e)x=8

f)....

Explicação passo-a-passo:

a)x=40-30

x=10

b)2x=10-30+20

2x=30-30

2x=0

x=0÷2

x=0

c)3x+2x=28+10-13

5x=38-13

5x=25

x=25÷5

x=5

d)18x =65+43

18x=108

x=108÷8

x=6

e)x=16÷2

x=8