Question

responda com cauculos:
b) y+1=7-y
4 2

c) 2(x-1)-3(x+1)=-(x+2)
3 2 6

Answer 1

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

mmc = 4

(y + 1)/4 = (14 - 2y)/4

y + 1 = 14 - 2y

3y = 13

y = 13/3

c) 2(x - 1)/3 - 3(x + 1)/2 = -(x + 2)/6

mmc = 6

4*(x - 1)/6 - 9*(x + 1)/6 = -(x + 2)/6

4x - 4 - 9x - 9 + x + 2 = 0

4x = -11

x = -11/4