Question

A》x/3+x/2=7+x/3
B》x-2/3+2x=5x/2
C》x-5/3+3x-2/2=4
D》x-1/5=x-2x-1/3​

Answer 1

Olá...

a)

x/3 + x/2 = 7 + x/3⇒anule os termos iguais, lados diferentes.

x/2 = 7

x = 7 × 2

x = 14

b)

x - 2/3 + 2x = 5x/2

3x - 2/3 = 5x/2⇒mmc=6

18x - 4 = 15x

18x - 15x = 4

3x = 4

x = 4/3

c)

x - 5/3 + 3x - 2/2 = 4

x - 5/3 + 3x - 1 = 4

4x - (5 + 3)/3

4x - 8/3 = 4

4x = 4 + 8/3

4x = 12 +8/3

4x = 20/3

x = 20/3 × 1/4

x = 20/12 ÷ 4

x = 5/3

d)

x - 1/5 = x - 2x - 1/3⇒cancele os termos iguais

- 1/5 = - 2x - 1/3​

2x = - 1/3 + 1/5

2x = - 2/15

x = - 2/15 × 1/2

x = - 2/30

x = - 1/15

Espero ter ajudado.