Question

1. 2(3x – 4) + 10 = 5(x + 4)
somebody please help me for 10 points ?

Answer 1

X=18

Explanation:

Isolate x on one side of the equation.

DISTRIBUTIVE PROPERTY:

A(B+C)=AB+AC

A(B-C)=AB-AC

2(3x – 4) + 10 = 5(x + 4)

2(3x-4)+10 (First, expand by using distributive property.)

2*3x=6x

2*4=8

6x-8

6x-8+10

-8+10 (Add and subtract.)

-8+10=2

6x+2

5(x+4)

5*x=5x

5*4=20

5x+20

6x+2=5x+20

6x+2-2=5x+20-2 (Subtract 2 from both sides.)

20-2 (Solve.)

20-2=18

6x=5x+18

6x-5x=5x+18-5x (Then, subtract 5x from both sides.)

18-5x (Solve.)

18-5x=18

x=18

So, the correct answer is x=18.