Question

1- resolva as esquaçoes:.
a)3x=48
b)5x-1=19
c)8x-12=72
d)5.(6-y) +10y=40​

Answer 1

Explicação passo-a-passo:

a) x = 48÷3

x= 16

b) 5x = 19 +1

5x = 20

x= 20÷5

x= 4

c) 8x = 72 +12

8x = 84

x= 84÷4

x= 21

d) 30 - 5y +10y = 40

+5y = 40-30

5y = 10

y= 10/5

y= 2