7x+21=4x+30

Simple and best practice solution for 7x+21=4x+30 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 7x+21=4x+30 equation:


Simplifying
7x + 21 = 4x + 30

Reorder the terms:
21 + 7x = 4x + 30

Reorder the terms:
21 + 7x = 30 + 4x

Solving
21 + 7x = 30 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
21 + 7x + -4x = 30 + 4x + -4x

Combine like terms: 7x + -4x = 3x
21 + 3x = 30 + 4x + -4x

Combine like terms: 4x + -4x = 0
21 + 3x = 30 + 0
21 + 3x = 30

Add '-21' to each side of the equation.
21 + -21 + 3x = 30 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 30 + -21
3x = 30 + -21

Combine like terms: 30 + -21 = 9
3x = 9

Divide each side by '3'.
x = 3

Simplifying
x = 3

See similar equations:

| 3(2x-1)=2(3x+2) | | 3/w=-6 | | 8x+2x-7x=24 | | 4(x-4)+72=-3x | | 3x+1=7x-11x | | s-10=20.23 | | 3x+5x=-15 | | 4x-22=3(2x-2) | | x^2-19x-72=0 | | 7(6a+3u-4b)= | | 5.7(x-4)=-0.3x+25.2 | | 2w^2-1w-22=0 | | 1/8(2p-1)=7/3p-(p-4)/6 | | 8y+10=6y-2 | | 5k^3+40=0 | | 7y+25=25y | | 2(2x+1)=4x-7 | | M=kw+r | | 25-2f=3f | | -7=-49 | | 2(x-3)=2(x+1) | | 9x+30=5x+126 | | T=fw-r | | 3(x+8)=x-12 | | 1/8(2p-1)=7/3p-p-4/6 | | 5y=2y+36 | | 5-6x=29 | | H=nw+3 | | -7y+5y=14-18 | | 5x^2-50x+90=10 | | 0.90=log(x) | | R=2+5w |

Equations solver categories