Question

3) resolva as equações

a)2×+5=13
b)9×=6×+18
c)11×+45=-10+10×
d)×
- =6
4
e)×
- =13
4
f)2×=40
g)6=30
h)9×-10=3×+60
i)9×+3+2×=5×-13+3×-11​

Answer 1

A- 2x=13-5

2x=8

x=8/4

x=2

B- 9x-6x=18

3x=18

x= 18/3

x=6

C- 11x-10x=-10-45

x= -55

F- 2x=40

x= 40/2

x= 20