-x-7=21

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


Simplifying
-1x + -7 = 21

Reorder the terms:
-7 + -1x = 21

Solving
-7 + -1x = 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 + -1x = 21 + 7

Combine like terms: -7 + 7 = 0
0 + -1x = 21 + 7
-1x = 21 + 7

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

Divide each side by '-1'.
x = -28

Simplifying
x = -28

See similar equations:

| 15x-5/123=0 | | -3c+5-9c+6= | | 180(n-2)=2520n | | 3(4m+7)+8m=81 | | -x+3=52 | | 7+9(-4-3z)= | | -108=6(4p+2) | | 3-8[8-(6y-6)]=0 | | 4y+1=7y+8 | | 4/7x=-56 | | 3-5[8-(6y-6)]=0 | | 8x-14+8=x-2 | | 6y+y=0 | | 6(1/2x-1/3)=2(2x-1/2) | | 49=4U+3U | | 2x^2+10y=28 | | X^2+20x=100 | | X/7-3=-9 | | 5.8*109= | | 20x-40=100 | | 60=X^2+20x+160 | | a-2.5=5.8 | | 2(-4)+7=3 | | 3/4x=-5.25 | | (10+w)*w=264 | | p-11=9 | | 137=5.90a+4.35b | | 10x+6=x+96 | | 3w-33=7(w-21) | | 3(k+7)=63 | | 4/52*4/52 | | 5/17*4/17 |

Equations solver categories