Question

resolva

(a)2X=X-5
(B)4X= X-9
(C)2(2X-5+4X)=50
(D)2X(X+9)+4= -36
(E)3X+X/3=60​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 2X=X-5 =

2X-X= -5 =

1X = -5

b) 4X= X-9 =

4X - X = -9 =

3X = -9

X = -3

c) 2(2X-5+4X)=50 =

4X+10+8X=50=

4X+8X=50-10

12X = 40

X= 40/12

d) 2X(X+9)+4= -36 =

2X+18X +4 = -36

20X = -36-4

20X = -32

X= -1,6

e) 3X+X/3=60​

4X = 57

X = 14,25