57=3x+21

Simple and best practice solution for 57=3x+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 57=3x+21 equation:


Simplifying
57 = 3x + 21

Reorder the terms:
57 = 21 + 3x

Solving
57 = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
57 + -3x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
57 + -3x = 21 + 0
57 + -3x = 21

Add '-57' to each side of the equation.
57 + -57 + -3x = 21 + -57

Combine like terms: 57 + -57 = 0
0 + -3x = 21 + -57
-3x = 21 + -57

Combine like terms: 21 + -57 = -36
-3x = -36

Divide each side by '-3'.
x = 12

Simplifying
x = 12

See similar equations:

| (2*6-x)/x^-4 | | (6x-5)+(5x-4)=x | | 8x+4y=-44 | | 6x^2-x+1= | | 5=x+.07x | | 3x+12=5x-40 | | 2x-4=5x+19 | | 35=x+2y | | -8(k-3)-(6k-1)=-15k | | 18x^2+3-6=0 | | 10x+4=12x-8 | | 6-3d=10d | | 2x-4=5x-18 | | 8x+2x=0 | | 13+4x=69 | | -16x^2+96x+3=147 | | 3x+-4=6x-5 | | 6v+12= | | 15=8x-17 | | p=15+-2q | | 11-9x=-52 | | 9z+1-7z=6+z+4 | | -4(a+9)=-6(4a-1) | | (2k-(-6))/((-6)^2-4) | | x^2-6x+24=147 | | 2+9x=47 | | 5(y-7)=-6y | | 4q+2p=30 | | (2k-6)/(6^2-4) | | 80-2x=8-10x | | (4,18),(4,5)= | | (2k-0)/(0^2-4) |

Equations solver categories