21-3*(2x-5)=12

Simple and best practice solution for 21-3*(2x-5)=12 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 21-3*(2x-5)=12 equation:


Simplifying
21 + -3(2x + -5) = 12

Reorder the terms:
21 + -3(-5 + 2x) = 12
21 + (-5 * -3 + 2x * -3) = 12
21 + (15 + -6x) = 12

Combine like terms: 21 + 15 = 36
36 + -6x = 12

Solving
36 + -6x = 12

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + -6x = 12 + -36

Combine like terms: 36 + -36 = 0
0 + -6x = 12 + -36
-6x = 12 + -36

Combine like terms: 12 + -36 = -24
-6x = -24

Divide each side by '-6'.
x = 4

Simplifying
x = 4

See similar equations:

| 3q^2-16q+23=P | | 5(e-7)=1 | | 8y^2-75y+175=0 | | 3t+6t-5=34 | | 2x^2+13x-7=0 | | x+6*4=17 | | 4x+14=63-3x | | -3(y-4)=-4y | | 4x+34=6x+12 | | 4a-4.8=2.4-2a | | 3(n-5)-(6-2n)=4n | | 6.4-5y=y+2.8 | | 3x-12=4x-8 | | 24-x=-13 | | 2p-9=5p+12-5w | | 35-y=4y | | 2s+16=s-25 | | 14-(2c+5)=-2c+9 | | 20-16p=4(5-4p) | | 4n+8=8-4n | | -7+8(5-3s)=3(7-9s) | | 4g+3(g-2)=-5(g-4)-g | | 2b+4(b-6)=-2(2b-14)+98 | | 1.4h=1.8h+4.8-0.4h | | 3b+16=5b+16-2b | | 4m-(8-m)=6-2m | | 4u-7=u+3(4+u) | | y-2y+3=3-y | | 4n-14=-16n+26 | | r+6-5r=4x | | 22w-42=34-16w | | 18-5t=t |

Equations solver categories