Question

1) 2x-4=8

2) 5a+5=20

3) m+8=10

4) 10+8x=50

5) x+8+3x=24

6) y-12=8

7) 3k-2=25

8) 3x+8-x=10

9) 3a-12+8=12

Answer 1

A) 2x - 4 = 8

2x = 8 + 4

X = 12/2

X = 6

2)5a+5=20

5a = 20 - 5

5a = 15

a= 15/5

a = 3

3) m+8=10

m = 10 - 8

m = 2

4) 10+8x=50

8x=50-10

8x=40

X=40/8

X=5

5) x+8+3x=24

X+3X = 24 - 8

4X = 16

X = 16/4

X = 4

6) y-12=8

Y = 8 + 12

Y = 20

7) 3k-2=25

3k = 25 + 2

3k = 27

K = 27/3

K = 9

8) 3x+8-x=10

3x-x= 10-8

2x=2

X=2/2

X=1

9) 3a-12+8=12

3a= 12 + 12 - 8

3a=16

a=16/3

a= 5,333...