Question

sabendo q U= q resolva as equações
a) 2 (x +3)=30

b) -3(y-1)-4(y-2)=6

c) -2(5g+1)=27

d) -26 -3(y-1)=8-2(y-2)

Answer 1

Olá!

a) 2(x+3)=30
2x+6=30
2x=30-6
2x= 24
x=24/2
x=12

b)-3(y-1)-4(y-2)=6
-3y+3-4y+2=6
-3y-4y=6-2-3
-7y=6-5
-7y=1(-1)
7y=-1
y=-1/7

c)-2(5g+1)=27
-10g-2=27
-10g=27+2
-10g=29(-1)
10g=-29
g=-29/10

d)-26-3(y-1)=8-2(y-2)
-26-3y+3=8-2y+4
-3y+2y=8+4+26-3
-y=12+23
-y=35(-1)
y=-35

Espero ter ajudado!