Question

detetmine a solucao de cada equacao abaixo a) x-18=20 b)5x + 15=30 c)7×-3=25 d)×-52=48​

Answer 1

a)x-18=20

X=20+18

=38

b)5x+15=30

5x=30-15

5x=15

X=15/5

X=3

c)7x-3=25

7x=25+3

7x=28

X=4

d)x-52=48

X=48+52

=100