-3(4-5x)=21

Simple and best practice solution for -3(4-5x)=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 -3(4-5x)=21 equation: 


Simplifying
-3(4 + -5x) = 21
(4 * -3 + -5x * -3) = 21
(-12 + 15x) = 21

Solving
-12 + 15x = 21

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 15x = 21 + 12

Combine like terms: -12 + 12 = 0
0 + 15x = 21 + 12
15x = 21 + 12

Combine like terms: 21 + 12 = 33
15x = 33

Divide each side by '15'.
x = 2.2

Simplifying
x = 2.2

See similar equations:

| 3/7y^5 | | x^(9/8)=3 | | 27y^2/63y^7 | | 11x-6+3x-3=10x-2+3x | | 5=7+u | | 2x^4/3bx.15b/8x | | 0.5n+4=2(b+2) | | 4(x-4)=4(-4-5x) | | 5t=33 | | 1.12+1.25m=8.62 | | 4z+3z=84 | | -x/12=6 | | 1=0.3x-0.7x-27 | | 3(x-5)=6(2x+4) | | -1(1+-7)-6(-7-x)=36 | | 2x+3x+3=-13 | | -4(2y-8)-y=-3(y-5) | | 6-6y=4-7y | | c-14=-77 | | 2(3x-6)+(3x-14)+90=180 | | 6y^2+4+11y=0 | | -2(3-2r)=-2+12 | | 216=1/336h | | lny=-5x^3 | | -4(z-9)-(-2z-1)=-3z | | 216=1/3x36h | | 8x-6=9+3x | | 4(2a-5)=16 | | 40/2x10 | | 216=36h | | 3(y-3)=5+2y | | 4(x+8)=5(x-7) |

Equations solver categories