Question

Me ajudem urgente Pfvr!!!​

Answer 1

a) x/4 + 20 = x/3

x/4 - x/3 = - 20

3x - 4x = - 240

x = 240

b)2/5y - 3/4= 3/20 y

2/5y-3/20y= 3/4

8y - 3y= 15

y= 15/5

y= 3

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

-x+3x= -1+2+2-1

2x= 2

x= 2/2

x= 1

d)x-10/9=x/6= 10 (m.m.c de 9 e 6= 18)

2x-20/18 + 3/18= 10

2x+3x-20= 180

5x= 180+20

5x= 200

x= 200/5

x= 40

f) 4x-1/10-2=4/5-2-x/4

2(4x-1) - 40= 16-5 (2-x)

8x-2-40= 16-10+5x

8x-42=6+5x

8x-5x= 6+42

3x= 48

x= 48/3

x= 16