Question

a) -2•(-4x+6)+30=-10
b) -20+3x+4•(-6+x)=-8
C) -5+(x-1)+2•(-12+x)=15
D) 10•(-5x+3)-40+30=-5•(x+6)
E) -30+60-5•(-3x+6)=-50+10x
Me ajudem por favor??

Answer 1

Resposta:

Explicação passo-a-passo:

a)8X+12+30=-10

8X=-10-12-30

8X=-52

X=-52/8

X=-6,5 ou 13/2

b) -20+3X-24+4X=-8

3X+4X=-8+20+24

7X=36

X=36/7

C)-5+X-1-24+2X=15

X+2X=15+5+1+24

3X=45

X=45/3

X=15

D) -50X+30-40+30=-5X-30

-50X+5X=-30-30+40-30

-45X=-50(-1)

45X=50

X=50/45

X=10/9

E) -30+60+15X-30=-50+10X

15X-10X=-50+30-60+30

5X=-50

X=-50/5

X=-10