Question

1°membro 2°membro

2×+6=3×+2
temos

a) 5×+4=3×+8

b) 7×-9=6×+13

c) ×+10=25

d) 4y=20

Answer 1

Para resolver

a)5x+4=3x+8
5x-3x=8-4
2x=4
x=4÷2
x=2

b)7x-9=6x+13
7x-6x=13-7
x=6

c)x+10=25
x=25-10
x=15

d)4y=20
y=20÷4
y=5