Question

resolva as questões abaixo:
a) 2-3x=-9-4x
b) 350x-500=100x+750
c) 3(2x-1)=-2(x+3)
d) 4(x+10)-2(x-5)=0

respondam pfvv

Answer 1

a) 2 - 3x = - 9 - 4x

- 3x + 4x = - 9 - 2

x = - 11

b) 350x - 500 = 100x + 750

350x - 100x = 750 + 500

250x = 1250

x = 1250 / 250

x = 5

c) 3(2x - 1) = - 2(x + 3)

6x - 3 = - 2x - 6

6x + 2x = - 6 + 3

8x = - 3

x = - 3/8

d) 4(x + 10) - 2(x - 5) = 0

4x + 40 - 2x + 10 = 0

4x - 2x = - 40 - 10

2x = - 50

x = - 50/2

x = -25