Question

p) 4x + 24 - 4x + 6 = 3x - 3
q) 4x - 4x - 3x = - 3 - 24 - 6
r) 7x = -14
140x -120x = 220
t) 14t - 9 - 3t = 2t + 36
u) 3y + 1 = 5y​

Answer 1

Resposta:

Explicação passo-a-passo:

P)

4x+24-4x+6=3x-3

4x-4x-3x=-24-6-3

4x-7x=-33

-3x=-33 x(-1)

3x=33

x=33/3

x=11

q)

4x-4x-3x=-3-24-6

-3x=-33 x(-1)

3x=33

x=33/3

x=11

r)

7x=-14

x=-14/7

x=-2.42

t)

14t-9-3t=2t+36

14t-3t-2t=9+36

14t-5t=45

9t=45

t=45/9

t=5

u)

3y+1=5y

3y-5y=-1

-2y=-1 x(-1)

2y=1

y=1/2

Answer 2

p)

$4x + 24 - 4x + 6 = 3x - 3 \\ 4x - 4x - 3x = - 3 - 24 - 6 \\ - 3x = - 33 \: \times ( - 1) \\ 3x = 33 \\ x = \frac{33}{3} \\ x = 11$

q)

$4x - 4x - 3x = - 3 - 24 - 6 \\ - 3x = - 33 \: \times ( - 1) \\ 3x = 33 \\ x = \frac{33}{3} \\ x = 11$

r)

$7x = - 14 \\ x = \frac{ - 14}{7} \\ x = - 2$

s)

$140x - 120x = 220 \\ 20x = 220 \\ x = \frac{220}{20} \\ x = 11$

t)

$14t - 9 - 3t = 2t + 36 \\ 14t - 3t - 2t = 36 + 9 \\ 9t = 45 \\ t = \frac{45}{9} \\ t = 5$

u)

$3y + 1 = 5y \\ 3y - 5y = - 1 \\ - 2y = - 1 \: \times ( - 1) \\ 2y = 1 \\ y = \frac{1}{2}$