3(x+8)-21=

Simple and best practice solution for 3(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 3(x+8)-21= equation:


Simplifying
3(x + 8) + -21 = 0

Reorder the terms:
3(8 + x) + -21 = 0
(8 * 3 + x * 3) + -21 = 0
(24 + 3x) + -21 = 0

Reorder the terms:
24 + -21 + 3x = 0

Combine like terms: 24 + -21 = 3
3 + 3x = 0

Solving
3 + 3x = 0

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 3x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 3x = 0 + -3
3x = 0 + -3

Combine like terms: 0 + -3 = -3
3x = -3

Divide each side by '3'.
x = -1

Simplifying
x = -1

See similar equations:

| g(p+4)=2x^2+3x+3 | | -7y+6=-8 | | (x-2)+(3x-7)+5x=180 | | (11t-17)+48.8=90 | | 2x-3(7x)+4-8(5)=X | | 26+x=12-14+x+x+23 | | a^2+8a-90=0 | | -6(x-6)+2=38 | | 10-3(x-2)=7 | | -4.1(-0.505-4.5b)=3.7b-25.217 | | 3(n+4)=38+2n | | -7(X+3)=3(2x-5)-X | | 1-r/9=1 | | 4x+5(y+8)= | | -4(x-6)+9x-8= | | 122+10x=230+7x | | Twothirds=onethird+a | | 70=10(x-7) | | 8(-7x+5+1y)= | | -84=-3n-(8n+7) | | 2+-1+3+-4+3= | | 13-4d=-27 | | 6-m/3=12 | | 11400=3400t | | 147.6=1/2m3 | | (3x/2)-1/4(X-5)=10 | | x/20-1/5=10 | | 7(2a+8b)= | | m+4-2n= | | 5/6=7n=9/9 | | X=20+0.5Y | | (7m-3)+90+(8m-18)=180 |

Equations solver categories