Question

socorroooo h) y - 8 + 5y = -3 +2y + 7
i) 4t + 9 = 3t + 5
j) -10 + 4 - 2x = -4X - 7
k) 10x - 8 - 2 = 7x- 4
1) 4x - 5 = 6x + 11
m) 2.(x - 2) + 5.(2-x) +6.(x + 1)= 0
n) 3. (x - 2) - (1 - x) = 13
o) - (x + 1) = 12 - (3x - 2)​

Answer 1

Explicação passo-a-passo:

h) y - 8 + 5y = -3 +2y + 7

y +5y -2y = 8 +7 -3

4y = 12

y = 12/4

y = 3

i) 4t + 9 = 3t + 5

4t -3t = 5 -9

t = -4

j) -10 + 4 - 2x = -4X - 7

-2x +4x = 10 -7 -4

2x = -1

x = -1/2

k) 10x - 8 - 2 = 7x- 4

10x -7x = 8 +2 -4

3x = 6

x =6/3

x = 2

l) 4x - 5 = 6x + 11

4x -6x = 11 +5

-4x = 16

x = 16/-4

x = -4

m) 2.(x - 2) + 5.(2-x) +6.(x + 1)= 0

2x -4 +10 -5x +6x +6 = 0

2x +6x -5x = 4 -6 -10

3x = -12

x = -12/3

x = -4

n) 3. (x - 2) - (1 - x) = 13

3x -6 -1 +x = 13

3x +x = 13 +6 +1

4x = 20

x = 20/4

x = 5

o) - (x + 1) = 12 - (3x - 2)

-x -1 = 12 -3x +2

3x -x = 12 +2 +1

2x = 15

x = 15/2

x = 7,5