7x-3(4x-5)=15-21x

Simple and best practice solution for 7x-3(4x-5)=15-21x 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 7x-3(4x-5)=15-21x equation: 


Simplifying
7x + -3(4x + -5) = 15 + -21x

Reorder the terms:
7x + -3(-5 + 4x) = 15 + -21x
7x + (-5 * -3 + 4x * -3) = 15 + -21x
7x + (15 + -12x) = 15 + -21x

Reorder the terms:
15 + 7x + -12x = 15 + -21x

Combine like terms: 7x + -12x = -5x
15 + -5x = 15 + -21x

Add '-15' to each side of the equation.
15 + -15 + -5x = 15 + -15 + -21x

Combine like terms: 15 + -15 = 0
0 + -5x = 15 + -15 + -21x
-5x = 15 + -15 + -21x

Combine like terms: 15 + -15 = 0
-5x = 0 + -21x
-5x = -21x

Solving
-5x = -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
-5x + 21x = -21x + 21x

Combine like terms: -5x + 21x = 16x
16x = -21x + 21x

Combine like terms: -21x + 21x = 0
16x = 0

Divide each side by '16'.
x = 0

Simplifying
x = 0

See similar equations:

| -4+3(2k-5)=7 | | 3.05=0.4y-1.75 | | 4N-43=N-42 | | -x+a=-b | | 413.4=15.9 | | 8=-x+6 | | 5[3-(2-3x)]+3x=3(6x+5)-10 | | 3x+4=7-6x | | f(x)=3x^3-2x+7 | | 5-10c+8c=15 | | 6(x^2)=150 | | -9t+18=4t-60 | | -3y+10+7y=20 | | 5(x+3)=1 | | X=-.02 | | 4.2x=4(.6x-1.2) | | 6y^2+29y+20= | | 2g+3(-7+4g)=1-y | | 10+.8x=30 | | 0.1z+2.3=-0.8 | | 2b+5=-4b+5 | | -3(x-5)=36 | | 4.2x=4(.6-1.2) | | 6y-23=-13 | | 81(-3d+2)=88 | | 15y-5y= | | x-(-74)=66-422 | | 11x-12=18-4x | | -7n+3+n=4(2n-1) | | X+2X-400+X-200+3X=6X-340 | | A-13.5=14.9 | | 5x-12+8=10 |

Equations solver categories