2x-9=7x-21

Simple and best practice solution for 2x-9=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 2x-9=7x-21 equation:


Simplifying
2x + -9 = 7x + -21

Reorder the terms:
-9 + 2x = 7x + -21

Reorder the terms:
-9 + 2x = -21 + 7x

Solving
-9 + 2x = -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.
-9 + 2x + -7x = -21 + 7x + -7x

Combine like terms: 2x + -7x = -5x
-9 + -5x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -5x = -21 + 0
-9 + -5x = -21

Add '9' to each side of the equation.
-9 + 9 + -5x = -21 + 9

Combine like terms: -9 + 9 = 0
0 + -5x = -21 + 9
-5x = -21 + 9

Combine like terms: -21 + 9 = -12
-5x = -12

Divide each side by '-5'.
x = 2.4

Simplifying
x = 2.4

See similar equations:

| 116=9v+8 | | c+6x=k | | -50+6x=-8+5x | | 2*(3+5)+2-3= | | -4(4p+4)-26=5(3p+4) | | 19 = r25 | | 11v=407 | | |4-5x/3|4/7 | | 11=-20+11*11 | | (6x-5y)+(-2x-8y)= | | 2t-9=20 | | y+44=47 | | -47-7=2 | | (2x+2)+(3x-52)=90 | | 3x-4(-2x+5)=1 | | 39-6=24 | | 5x+6=2(x+4) | | -7(5+r)=21 | | 4z-9=10 | | 33x-3=0 | | 8/y=4 | | 6+2x+3x=x+2x-5x+3+5 | | w=4(12) | | -2x-2(-7-11)=-98 | | 4z/9-9=10 | | 2x^2+4x+38=-6 | | 5p=3+8 | | 2x-20=-4x-14 | | h=t-l/3 | | 4m-15=21 | | -3x-1=2(z+7) | | z+21=99 |

Equations solver categories