7x-7=-21

Simple and best practice solution for 7x-7=-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 7x-7=-21 equation: 


Simplifying
7x + -7 = -21

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

Solving
-7 + 7x = -21

Solving for variable 'x'.

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

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

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

Combine like terms: -21 + 7 = -14
7x = -14

Divide each side by '7'.
x = -2

Simplifying
x = -2

See similar equations:

| (2x+5)-(4x-6)=0 | | 2x+1/2-6x-1/4=-5/12 | | 46+4= | | 5-12/x=3 | | 4x+3x-5+8=0 | | 0.6808=(136.779-35.9x)/(136.779-5.74x) | | 3x+2-5=0 | | 0.6808=(225.008-39.2x)/(225.008-5.74x) | | 10-2k=6 | | 150-(-35)+20= | | 2a-b=16 | | -25+29= | | 2x+3x+(3x+32)=360 | | -5-13= | | -5-(-13)= | | 0.7834=(21.8694-5.74x)/(21.8694-3.81x) | | x+(x-12)=180 | | x+x-12=180 | | n-(-13)=-5 | | -7+-25= | | 1/a=8/7a-1/14 | | 0.5333=(136.779-35.9x)/(136.779-3.81x) | | 1.8+.03x=.17x-1 | | 4xy+3x-2y+5xy= | | 14y-9y= | | -4x+1=x+36-7 | | -4x+1=x+36-7 | | 5/(x+3)+10=15 | | 6(x-2)+3=5(2x+3) | | BC+V=3K | | 0.5333=(149.352-39.2x)/(149.352-3.81x) | | 36*x=9 |

Equations solver categories