Question

1) What are the x's in 2 (3x + 1) = x + 22?

2) What are the x's in 2x + 2 = x + 5?
3) What are the x's in 3x + 2x = 10?


I really don't know these.

Answer 1

1. x=4 2(3{4}+1)={4}+22
2. x=3 2(3)+2=(3)+5
3. x=2 3(2)+2(2)=10

Answer 2

2(3x + 1) = x + 22
6x + 2 = x + 22
-1x -1x
5x + 2 = 22
-2 -2
5x=20
/5 /5
X=4


2x + 2 = x + 5
-x -x
3x + 2 = 5
-2 -2
3x = 3
/3 /3
X=1


3x + 2x = 10
5x=10
/5 /5
X=2