3x+2(x+8)=21

Simple and best practice solution for 3x+2(x+8)=21 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3x+2(x+8)=21 equation:


Simplifying
3x + 2(x + 8) = 21

Reorder the terms:
3x + 2(8 + x) = 21
3x + (8 * 2 + x * 2) = 21
3x + (16 + 2x) = 21

Reorder the terms:
16 + 3x + 2x = 21

Combine like terms: 3x + 2x = 5x
16 + 5x = 21

Solving
16 + 5x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-16' to each side of the equation.
16 + -16 + 5x = 21 + -16

Combine like terms: 16 + -16 = 0
0 + 5x = 21 + -16
5x = 21 + -16

Combine like terms: 21 + -16 = 5
5x = 5

Divide each side by '5'.
x = 1

Simplifying
x = 1

See similar equations:

| 4y-15=5 | | x+4(x+6)=-1 | | 7(y+9)=-9y-33 | | 5y-1=-3(y+3) | | 5u+6(u+8)=15 | | -8=5(y-7)-2y | | 14-7x=109-42x | | -83=2y+3y-18 | | -12-8x=10x+24 | | -6v-12+2v=28 | | 2x+13=-47-10x | | x^2-3x+28=0 | | -(4y+4)-(-3y-8)=0 | | -14-(-46)= | | 2k-7=23 | | 4x+4=3x+3 | | 4x^2-17x+5=-4x+2 | | -39+(-97)= | | 34-(-54)= | | 92-19= | | -54-(-26)= | | 3m-16=12 | | 6x^2+x-2=0 | | 110-6x=2x+22 | | 35+(-38)= | | -89+(-84)= | | 4x^2+8x+3=0 | | -10+5= | | x^2+5x+19=-4x+5 | | -10-5= | | 3x-1=2(x+2) | | -8-10= |

Equations solver categories