7-3x=4x-21

Simple and best practice solution for 7-3x=4x-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 7-3x=4x-21 equation:


Simplifying
7 + -3x = 4x + -21

Reorder the terms:
7 + -3x = -21 + 4x

Solving
7 + -3x = -21 + 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.
7 + -3x + -4x = -21 + 4x + -4x

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

Combine like terms: 4x + -4x = 0
7 + -7x = -21 + 0
7 + -7x = -21

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

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

Combine like terms: -21 + -7 = -28
-7x = -28

Divide each side by '-7'.
x = 4

Simplifying
x = 4

See similar equations:

| 16t-64t+48=0 | | ln(11x-1)=2 | | 0.08x-0.2=1.32 | | 560=-16t+64t+512 | | 5x^2=420-2x^2 | | x^2-101=0 | | -30-7a=5a+6(a-8) | | 20-ln(5-x)=0 | | 8v+5(4+8v)=-23+5v | | 3x^2=144-x^2 | | 4b-8(4b-3)=-2-2b | | 4n-23=-8+7n | | 5(7x-8)-4x=-6x-3 | | 3z-12=12+7z | | 34-8x=2x-8(-2+2x) | | 40-8n=-8(1+4n) | | =s^3+4s^2+6 | | 8+5(6-3p)=-16-6p | | 6(-3x+1)-5x=-39-8x | | 10(3x+1+2)=34 | | 2*1r=4 | | 2x^2-40x-144=0 | | 6(5+x)-4x=24+5x | | 36-3m=-5(2m-3) | | -2n-8(-3n+4)=40+4n | | -n+3=-7(n+3) | | Tnr=pv | | 5x+3x+2x=3x+1 | | ax-c=borx | | 22+r=-(6-8r) | | 1-10y=27-3y+6 | | 5x-100+2x-25=75 |

Equations solver categories