5x-7=21(1+x)

Simple and best practice solution for 5x-7=21(1+x) 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 5x-7=21(1+x) equation:


Simplifying
5x + -7 = 21(1 + x)

Reorder the terms:
-7 + 5x = 21(1 + x)
-7 + 5x = (1 * 21 + x * 21)
-7 + 5x = (21 + 21x)

Solving
-7 + 5x = 21 + 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.
-7 + 5x + -21x = 21 + 21x + -21x

Combine like terms: 5x + -21x = -16x
-7 + -16x = 21 + 21x + -21x

Combine like terms: 21x + -21x = 0
-7 + -16x = 21 + 0
-7 + -16x = 21

Add '7' to each side of the equation.
-7 + 7 + -16x = 21 + 7

Combine like terms: -7 + 7 = 0
0 + -16x = 21 + 7
-16x = 21 + 7

Combine like terms: 21 + 7 = 28
-16x = 28

Divide each side by '-16'.
x = -1.75

Simplifying
x = -1.75

See similar equations:

| 4x^2+20x-12=0 | | 12+3(x+4)=12 | | 2x+20=9x-36 | | 4(2x+3)=26+8 | | 16u+36-u^2=0 | | -6x-10x=80 | | -5+2x=12x+5 | | z^2-14z-72=0 | | 3x+3=2x+12 | | x+2=0.5x-1 | | x^2+5x=3x+11 | | 8x-7=-12x+2 | | 30+5x=2-2x | | x-.15x=306 | | 6+x=5-4x | | 5x+19=12x-51 | | x+5=-4x+3 | | x-2=5x-4 | | 3x^2+4x=2x^2+3 | | 2x-4=3-5x | | 4x^2+6x+14=0 | | 8x=3x+7 | | x^2-2=x | | -7x+3=3x+1 | | 2x+67-2*12=x+18x-9 | | 2x+1=5-6x | | 11x-6=3x+7 | | 61-6x=21x+16 | | -2x+1=5x+9 | | 7x+8=10x-3 | | 13-9x=157-27x | | 3x-9=5x-1 |

Equations solver categories