Question

1) 4x + 2 = 10
m) 6x + 1 - 2 x =37
n) 7 x - 2 =26
o) 10 x - 5 x + 3 - 5 = 5x -3
p) 7 x + 2 x - 5 x = 3 + 10​

Answer 1

Resposta:

4x+2=10

4x=10-2

4x=8

X=8:4

X=2

m)6x+1-2x=37

6x-2x=37-1

4x=36

X=36:4

X=9

n)7x-2=26

7x=26+2

7x=28

X=28:7

X=4

o)10x-5x+3-5=5x-3

5x-2=5x-3

corta os termos iguais

-2=-3

x∈∅

p)7x+2x-5x=3+10

4x=13

X=13:4

X=3,25 ou $\frac{13}{4}$