X-(-13)=21

Simple and best practice solution for X-(-13)=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-(-13)=21 equation: 


Simplifying
X + -1(-13) = 21

Multiply -1 * -13
X + 13 = 21

Reorder the terms:
13 + X = 21

Solving
13 + X = 21

Solving for variable 'X'.

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

Add '-13' to each side of the equation.
13 + -13 + X = 21 + -13

Combine like terms: 13 + -13 = 0
0 + X = 21 + -13
X = 21 + -13

Combine like terms: 21 + -13 = 8
X = 8

Simplifying
X = 8

See similar equations:

| z/14=-25 | | -5b-4b=6-6b | | bx=ay+1 | | 9x-4(x-2)=8x+15-2x | | -2v-14=-2 | | 30+55.5w+20w=20+46.5w+34w | | 7(5+f)=9(f+3) | | 21-18-32x=10-7x-52 | | 10+9w=14w | | 0.2-0.02(x+3)=-0.02(3+x) | | 5d/4-10=0 | | 1-4n+4n=3n-8 | | 2x-240=600 | | 7(u-3)-3=-5(-4u+8)-7u | | -2=3y+17 | | 2x-40=600 | | 2x^2-5xy-3y^2+3x+19y-20=0 | | -13=-3x+19 | | 2n-12/7=0 | | (1-3x)(2.5x+6)=0 | | f(y)=abs(x+7)-4 | | (Cos^2)x=(Sen^2)x*(Cos^2)x+(Cos^4)x | | 2x^2-5xy-3y^2+3x+19y=20 | | 8z-7z=-9z+7 | | 9x-37+1=0 | | 8z*7z=-9z+7 | | 7e^3x=8e^4x | | 3(2x+9)=29 | | Factorisey^2+27y= | | Factorisey^2+27= | | Y=3.8X-2.7 | | 4x^2y^2+2xy= |

Equations solver categories