21=5x-4(x-7)

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


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

Reorder the terms:
21 = 5x + -4(-7 + x)
21 = 5x + (-7 * -4 + x * -4)
21 = 5x + (28 + -4x)

Reorder the terms:
21 = 28 + 5x + -4x

Combine like terms: 5x + -4x = 1x
21 = 28 + 1x

Solving
21 = 28 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
21 + -1x = 28 + 1x + -1x

Combine like terms: 1x + -1x = 0
21 + -1x = 28 + 0
21 + -1x = 28

Add '-21' to each side of the equation.
21 + -21 + -1x = 28 + -21

Combine like terms: 21 + -21 = 0
0 + -1x = 28 + -21
-1x = 28 + -21

Combine like terms: 28 + -21 = 7
-1x = 7

Divide each side by '-1'.
x = -7

Simplifying
x = -7

See similar equations:

| 4x^2-48+108=0 | | x/6-1/5= | | x-4y=19fory | | 36=216n | | 3x+22=12x-15 | | -244=3x+7(-4x-17) | | 10(-5)= | | lnx=0.6 | | -1+4(2z-1)=3 | | 3x-70=260 | | 21x^2+192x+180=0 | | 12f-3f= | | 61=42-13 | | -231=-4x+5(3x-22) | | 6-5i/-2i | | 15-3(4x+6)=11-4x | | 3(9c+2)= | | (5/9)^2 | | 10sinx=-5 | | -5x1/5-7 | | 3x+4(6x+11)=206 | | 6x-9=2x+11 | | -2x-3(x+17)=-91 | | 10y+7y=34 | | -x^2+6x=8 | | 4(7x)= | | 3(8x-9)=50 | | 2(3x+5)=22+5x-3x | | (3u-4)(6+u)=0 | | (5/9)^-2 | | 80=2x+4(-3x-10) | | 14x-47=58+11x |

Equations solver categories