Question

0 Resolva
as equações abaixo:
A) × + 5 = 8
B) × - 4 = 3
C) × + 6 = 5
D) × - 7 = -7
E) × + 9 = -1
F) × - 39 = -79
G) 10 = × + 8
H) 15 = × + 20
I) 9× - 2 = 4× + 18
J) 2× - 10 + 7× + 10 = 180
K)7y - 10 = y + 50
L)
M) 3. (×-2) = 15​

Answer 1

Resposta:

a) x = 3

b) x = 7

c) x = -1

d) x = 0

e) x = -10

f) x = -40

g) x = 2

i) 5x = 20

x = 4

j) 9x = 180

x = 20

k) 6y = 60

y = 10

l)

m) 3x - 6 = 15

3x = 21

x = 7