5x+3x=7x+21

Simple and best practice solution for 5x+3x=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 5x+3x=7x+21 equation:


Simplifying
5x + 3x = 7x + 21

Combine like terms: 5x + 3x = 8x
8x = 7x + 21

Reorder the terms:
8x = 21 + 7x

Solving
8x = 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.
8x + -7x = 21 + 7x + -7x

Combine like terms: 8x + -7x = 1x
1x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
1x = 21 + 0
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

See similar equations:

| 55x-3(9+12)=-64 | | 4-5(x+2)=-16 | | 2x-3(3x-1)=10 | | (-11)-9+1-(-6)= | | 7/18=65x | | 8x^2+54x+81=0 | | x^2(x-49)-16(x^2-49)=0 | | 6-2(7p-1)=48 | | 26=8x-2 | | 15x^2+10x-4=0 | | T+3(T-8)*2=T+9/3 | | 6(x+y)y+3(x+3)= | | 16=3.50+2.50r | | 2x-12=5x+6 | | 6y+8=-4 | | 6-2(7p-1)=.48 | | 120-75=3(90-75) | | 242x^2-50=0 | | y=45(42)-120 | | 10x+33=-17 | | -64=-4(-2n+8) | | 4x+(3x+50)=972 | | 4-d=-1d+4 | | -12+X=-0.06 | | -80=-8(2+8k) | | 120-x=270-3x | | 114=-3(-5n-8) | | 5/6x+4=-2 | | 10x+35=-15 | | 6*7-3*4+1=8 | | 2=2(p-4) | | 6-9(x)=-39 |

Equations solver categories