Question

1. Determine o valor das incógnitas: PRAAAA HJJJ PVR

a) 4x - 5 = 3x – 6

b) 3x - 2 = 4x + 2

c) 9y - 5 = 4y – 8

d) 2m + 30 = 4m – 20

e) 10 + 3x = 6x – 8​

Answer 1

Resposta:

a) 4x-3x=-6+5

x=-1

b) 3x-4x=2+2

x=4

c)9y-5=4y-8

9y-4y=-8+5

5y=-3

y=-3-5

. y=8

d)2m+30=4m-20

2m-4m=-20-30

-2m=-50 .(-1)

2m=50

m=50/2

m=25

e)10+3x=6x-8

3x-6x=-8-10

-3x=-18 .(-1)

3x=18

x=18/3

×=6