X+15+x+15=x+21

Simple and best practice solution for X+15+x+15=x+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 X+15+x+15=x+21 equation:


Simplifying
X + 15 + x + 15 = x + 21

Reorder the terms:
15 + 15 + X + x = x + 21

Combine like terms: 15 + 15 = 30
30 + X + x = x + 21

Reorder the terms:
30 + X + x = 21 + x

Add '-1x' to each side of the equation.
30 + X + x + -1x = 21 + x + -1x

Combine like terms: x + -1x = 0
30 + X + 0 = 21 + x + -1x
30 + X = 21 + x + -1x

Combine like terms: x + -1x = 0
30 + X = 21 + 0
30 + X = 21

Solving
30 + X = 21

Solving for variable 'X'.

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

Add '-30' to each side of the equation.
30 + -30 + X = 21 + -30

Combine like terms: 30 + -30 = 0
0 + X = 21 + -30
X = 21 + -30

Combine like terms: 21 + -30 = -9
X = -9

Simplifying
X = -9

See similar equations:

| 9=-5x-26 | | 15b-11=10b-2 | | 5x-3x+4=3c+8 | | -12+7x=5 | | (5x+3)(5x^2-12x+7)=0 | | 9+3ln(x)=6 | | 3x+6x=7x+x+4 | | -x+41=3x+17 | | -3n^2=-141 | | 5x-1=5+2x | | 10v^2=-9 | | 5x(6y*4x)=65 | | (x)(2x)=28x | | 12+n=-17 | | -8-4(1+6f)=-33 | | 4x+1-(6)=3+2x | | 5(4)-10y=20 | | 2/-7/-4= | | 3x+7-2x-1=x+10 | | X-2+x-2=x+3 | | -2(4s-5)-10=-2(9s+8)-3 | | 5(3)-10y=20 | | 5x(x)+75+5=2x+52 | | (2x+2)(2x+2)=168 | | 17=3(a+3)-a | | 5(1)-10y=20 | | 28x^2-68x=48 | | 19(4c-1)-8=74c+19 | | 127+8d=19+20d | | 5(-1)-10y=20 | | 2b^2-14b=b-7 | | 0=9x^2+3x-2 |

Equations solver categories