15x-3=7x+21

Simple and best practice solution for 15x-3=7x+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 15x-3=7x+21 equation:


Simplifying
15x + -3 = 7x + 21

Reorder the terms:
-3 + 15x = 7x + 21

Reorder the terms:
-3 + 15x = 21 + 7x

Solving
-3 + 15x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-3 + 15x + -7x = 21 + 7x + -7x

Combine like terms: 15x + -7x = 8x
-3 + 8x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-3 + 8x = 21 + 0
-3 + 8x = 21

Add '3' to each side of the equation.
-3 + 3 + 8x = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 8x = 21 + 3
8x = 21 + 3

Combine like terms: 21 + 3 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

See similar equations:

| 34=-8x-6 | | y=(x+4)(x+7) | | -27+15p=33 | | 14h+-16-7j+8+-11h= | | (2x^2+3x-6)+x^2-18x+6= | | (5x+2)+(7x+3)= | | 4+10x=24 | | 2x+11+3x-1+2x-7=180 | | y=(x-3)(x-2) | | -2a+3+7a=-12 | | 2(x-4)+56=-4X | | 4g+9=2(g-6)+2y | | (8x^2+x)-(x^2+3x)= | | 2(2c+11d)+8c-14d+-3cd= | | 6(c+7)-14=25 | | 3y-7=5[2y-3]+4 | | 7x+3=42 | | 3x+42= | | -12+-7k=30 | | 23=4x+5y | | -100+4s=100 | | -100+4s=-50 | | t+3t-7=4+-7 | | 70x+40=6 | | -100+4s=50 | | 4/2x-5/2x+9/2x | | 10-5+3x+2x=0 | | 5x-28=3x+10 | | (2x^2+4x)+(3x^2+2x)= | | 4/2x | | 1+2+3=24 | | 2+4w=-26 |

Equations solver categories