Question

I) 4(X-2)=60
J) 5(X+3)= 55
K) +20+34 =

Answer 1

Resposta:

i ) 4(x + 2) = 60

4x + 8 = 60

4x = 60 - 8

4x = 52

x = 52 ÷ 4

x = 13

j ) 5( x + 3 ) = 55

5x + 15 = 55

5x = 55 - 15

5x = 40

x = 40 ÷ 5

x = 8

k ) + 20 + 34

+ 54