Question

a) 3x - 9 = 9
b) x - 5 = -7
c) y - 6 = 5y + 8
d) 10x = 20 + 9x
e) 2x + 5 - x = 5 - 3x
f) 2m + 6 = m
g) 2x + 1 = 15
h) 5 - x - 20 = 5x - 10 - 7x
i) x + 6 = 2 - 3​

Answer 1

Resposta:

3×=9+9

3×=18

×=18/3

×=6

×=-7+5

×=-2

y-5y=8+6

-4y=14(-1)

4y=-14

y=14/4

y=3,5

10×-9×=20

×=20

2×-×+3×=5-5

4×=0

×=0

2m-m=-6

m=-6

2×=15-1

2×=14

×=14/2

×=7

×=2-3-6

×=2-9

×=-7