r-(-7)=-13

Simple and best practice solution for r-(-7)=-13 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 r-(-7)=-13 equation: 


Simplifying
r + -1(-7) = -13

Multiply -1 * -7
r + 7 = -13

Reorder the terms:
7 + r = -13

Solving
7 + r = -13

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + r = -13 + -7

Combine like terms: 7 + -7 = 0
0 + r = -13 + -7
r = -13 + -7

Combine like terms: -13 + -7 = -20
r = -20

Simplifying
r = -20

See similar equations:

| 4.8+y=2.5 | | 0.227x+65y=0 | | [m]/4=5 | | X-b=0 | | 6-6t=20 | | 4(x-2.8)=45 | | 3.16+y=z | | 5x+2x-3=x+10x | | 6=3(v-9) | | 1.5x^2+0.1x=0.6 | | 6a*4a= | | 3y+3x-9=0 | | 10(-1+x)=120 | | 8x-6=-9x+1 | | 3.5+4x-4=1.5 | | 0.333x-0.666y=2z | | .6x=-29.64 | | 4(x-6)+2x=-6 | | (3/5)/(21/25) | | x+-4=10 | | t/5-4=12 | | 0=2x^2-12x+34 | | 6x-10=38-2x | | (x^8)-(6x^4)-7=0 | | h+3=15 | | y=-(-6)-5 | | 6x-x+10=-30 | | 8.6x+2.2(2x-5)=5 | | 28=4(3r+5) | | -6=r/2 | | 2(x+6)=2(6+0.33) | | 32+7x-3-9x=19 |

Equations solver categories