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Juliacarvalhobb14go
Respondido

1. Determine
o valor do incognita
an cada iten.

a)X+ 20 = - 32

b) X-90 - 4x +1AX= 9

c) - 4y +6 Y+ 2y - 10 = 6

d) a (x+4)=8

e) 5x + 10 = 7x +40

1) 3 (4-1) +5(2y +3)=8Y-25
me ajudem pfv​

Resposta :

Lorenasnt79go

Resposta:

a) X+ 20 = - 32

x = -32-20

x = -52

b) X-90 - 4x +1AX= 9

x-4x+1ax = 9+90

-3x+1ax = 99

c) - 4y +6 Y+ 2y - 10 = 6

12y = 6+10

12y = 16

y = 16/12

d) a (x+4)=8

ax+4a =8

e) 5x + 10 = 7x +40

5x-7x = 40-10

-2x = 30 .(-1)

2x = -30

x = -15

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