3x+15=6x-21

Simple and best practice solution for 3x+15=6x-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+15=6x-21 equation:


Simplifying
3x + 15 = 6x + -21

Reorder the terms:
15 + 3x = 6x + -21

Reorder the terms:
15 + 3x = -21 + 6x

Solving
15 + 3x = -21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
15 + 3x + -6x = -21 + 6x + -6x

Combine like terms: 3x + -6x = -3x
15 + -3x = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
15 + -3x = -21 + 0
15 + -3x = -21

Add '-15' to each side of the equation.
15 + -15 + -3x = -21 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = -21 + -15
-3x = -21 + -15

Combine like terms: -21 + -15 = -36
-3x = -36

Divide each side by '-3'.
x = 12

Simplifying
x = 12

See similar equations:

| 35-7(n)=98 | | 35-7xn=98 | | (X+3)-3x= | | 5(2x+6)=-4(-52x)+3x | | 2x+x-15+x=180 | | 1700=17(20+x) | | 2/1=18/x | | y-5=3/4(x-12) | | 3(x^2-2x+3)-4(4x+1)-(3x^2-2x)= | | -2(5s-4)-8=-2(7s+11)-2 | | 98=35-7n | | 3x^2-18x=10x-49 | | 2w+2b=P | | 35-7n=98 | | x/70=2/14 | | -2(t-4)+5t=6t-9 | | -3(X+3)=4(2x+1) | | 21(35+x)=1785 | | 5x(-2/3) | | 56=y+(3y+8) | | 15y-3(2b+7)=-12 | | -7(x+y)= | | x-15+2x+x=180 | | -3(4x-5)=20 | | -2(x+2Y)= | | 4(w-5)=-32 | | P=-9862.5+212.5(.7) | | 4w^2+27=0 | | 5(x-3)35=0 | | -8.4(x-2.5)=16.8 | | 3x^2-16=227 | | (w-4/9/)(-2/3)=-4/5 |

Equations solver categories