Question

Vamos resolver as seguintes equações do 1° grau,sendo U=Q A)3(x-2)-(1-x)=13 B)6(4-1)-55=-5(2t+3) C)5-4(x-1)=4x-3(4x-1)-4 D)3(y-3)+4=2[-(y-5)-4(2y+1)]

Answer 1

A) 3x-6-1+x=13
4x=13+7
4x=19
X=19/4
X=4,75

B) 24-6-55=-10t-15
-37=-10t-15
-37+15=-10t
-22=-10t
-22/-10=t
T=2,2

C) 5-4x-4=4x-12x+3
4x-4x+12x=3-5+4
12x=2
X=2/12
X=0,166

D) 3y-9+4=2[y-5-8y-4]
3y-9+4=2+7y-9
3y-7y=2-9+9-4
-4y=-2
Y=-2/-4
Y=0,5