Question

Resolva as equações a seguir: a) 3 + x = 0 b) 4x + 2 = 6 c) 12 – 7 + 4x = 25 d) 5x – 3x = 30 e) 4x + 10 =

Answer 1

A)3+x=0

X=3+0

X=3

B)4x+2=6

4x=6+2

4x=8

X=8÷4

X=2

C)12-7+4×=25

5=25+4×

5=29×

X=29÷5

X=5,8

D)5x-3x=30

5x=30-3x

5x=-27x

X=27÷5

X=5,4

E)4×+10=

4x=+10

X=10÷4

×=2,5