Question

gente, por favor me ajuda, 34 pontos

3(x-1)-(x-3)+5(x-2)=14

5(x-3)-4(x+2)=5+3(1-2x)

Answer 1

Olá!!!

1) 3(x - 1) - (x - 3) + 5(x - 2) = 14 ← Multiplique no parêntese

3x - x - x + 3 + 5x - 10 = 14 ← Calcule

7x - 10 = 14 ← Mova o termo

7x = 14 + 10 ← Soma

7x = 24 ← Mova o termo

x = 24/7 ≈ 3,42

2) 5(x - 3) - 4(x + 2) = 5 + 3(1 - 2x) ← Multiplique parêntese

5x - 15 - 4x - 8 = 5 + 3 - 6x ← Calcule

x - 23 = 8 - 6x ← Mova o termo

x + 6x = 8 + 23 ← Soma

7x = 31 ← Mova o termo

x = 31/7 ≈ 4,42