Respuesta :

ayre1283
3(2x+3)+4x+2=21
6x+9+4x+2=21
6x+4x+9+2=21
10x+11=21
10x=21-11
10x=10
x=1
LittleAngel36

Answer:

[tex]x = 1[/tex]

Step-by-step explanation:

1) Expand.

[tex]6x + 9 + 4x + 2 = 21[/tex]

2) Simplify 6x + 9 + 4x + 2 to 10x + 11.

[tex]10x + 10 = 21[/tex]

3) Subtract 11 from both sides.

[tex]10x = 21 - 11[/tex]

4) Simplify 21 - 11 to 10.

[tex]10x = 10[/tex]

5) Divide both sides by 10.

[tex]x = 1[/tex]

Therefor, the answer is x = 1.