Question

Resolva as equações do 1 grau
x+45-10=80-5-x​

Answer 1

    x + 45 - 10 = 80 - 5 - x ⇔

⇔ x + 35 = 75 - x ⇔

⇔ x + x = 75 - 35 ⇔

⇔ 2x = 40 ⇔

⇔ x = 20

Answer 2

X+45-10=80-5-X

X+35-80-5-X

X+35=75-X

X+X+35=75

X+X= 75-35

2X= 75-35

2X=40

X=20