Question

Ayudenme con estas ecuaciones!!

Answer 1

b) 3x+2 /4 = x-3/2

2(3x+2) = 4(x-3)

6x + 4 = 4x - 12

6x - 4x = -12 - 4

2x = -16

x = -8

c)3x+10=x+30

3x-x=30-10

2x=20

x=20/2

x=10

d)3(x+25)=81

3(x+25)-(81)=0

3x+75-81=0

3x-6=0

3x=6

x=6/3

x=2

e)

3x-5=16

3 x = 16+5

3x=21

x=21/3

x=7

G)5x + -50 = 25

-50 + 5x = 25

-50 + 50 + 5x = 25 + 50

0 + 5x = 25 + 50

5x = 25 + 50

5x = 75

x= 7

H)3x + 80 = x + 120

80 + 3x = x + 120

80 + 3x = 120 + x

80 + 3x + -1x = 120 + x + -1x

80 + 2x = 120 + x + -1x

80 + 2x = 120 + 0

80 + 2x = 120

80 + -80 + 2x = 120 + -80

0 + 2x = 120 + -80

2x = 120 + -80

2x = 40

X=20

Answer 2

c)

3x+10=x+30

3x-x=30-10

2x=20

x=20/2

x=10

D)

3(x+25)=81

x+25=81/3

x=27-25

x=2