Question

10. Halla la solución de las siguientes ecuaciones
a. 2x = 18
b. 5x = 40
c. 8m = 32
d. -7p = -35
e. x + 10 = 10 - 10
f. x + 6 = 5
g. 2x+8 = x + 11
h. 2(x + 5) + 3(x - 2) = 24
i. 3(x-7) - 2(x-3) = -18
1. 2(t+ 3) = 10
k. 3(x - 2) = 2x​

Answer 1

Respuesta:

a. 2x=18

×=18÷2

x= 9

b. 5x=40

x=40÷5

x=8

c. 8m=32

m=32÷8

m= 4

d.-7p=-35

p=-35÷(-7)

p=5

e. x+10=10-10

x=0+10

x=10

f. x+6=5

×=5-6

x= -1

g. 2x+8=x+11

2x-x=11-8

x=3

h.2(x+5)+3(x-2)=24

2x+10+3x-6=24

5x+4=24

5x=24-4

x=20÷5

x=4

i. 3(x-7)-2(x-3)=-18

3x-21-2x+6=-18

x-15=-18

x=-18+15

x= -3

1. 2(t+3)=10

2t+6=10

2t=10-6

2t=4

t=2÷4

t=2

k. 3(x-2)=2x

3x-6=2x

3x-2x=6

x=6