SOLUTION: 2. Solve the following equations for x. (a) 4x + 6 = 30 (b) 5(x � 4) = 3x + 10

Click here to see ALL problems on Equations

Question 347620: 2. Solve the following equations for x.
(a) 4x + 6 = 30
(b) 5(x � 4) = 3x + 10

Found 2 solutions by checkley77, rmcaz79:
Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website!
(a) 4x + 6 = 30
4x=30-6
4x=24
x=24/4
x=6 ans.
(b) 5(x � 4) = 3x + 10
5x-20=3x+10
5x-3x=10=20
2x=30
x=30/2
x=15 ans.

Answer by rmcaz79(8) (Show Source):
You can put this solution on YOUR website!
With equations, you need to get x on one side and the number on the other.
Equation (a)
4x+6=30
First you would subtract 6 form both sides
Then you would divide both sides by four which will give you with the answer for x.
(a)
4x+6=30
-6 -6
4x=24
4x/4=24/4
x=6
Equations (b)
5(x-4)=3x+10
With this equation you need to get rid of the parenthesis first. You do that by multiplying.
Then you need to get all the x's on one side and the numbers on the other.

(b)
5(x-4)=3x+10
5x-20=3x+10
+20 +20
5x =3x+30
-3x -3x
2x=30
2x/2=30/2
x=15