3-(4+r)=7

Simple and best practice solution for 3-(4+r)=7 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 3-(4+r)=7 equation: 


Simplifying
3 + -1(4 + r) = 7
3 + (4 * -1 + r * -1) = 7
3 + (-4 + -1r) = 7

Combine like terms: 3 + -4 = -1
-1 + -1r = 7

Solving
-1 + -1r = 7

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + -1r = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -1r = 7 + 1
-1r = 7 + 1

Combine like terms: 7 + 1 = 8
-1r = 8

Divide each side by '-1'.
r = -8

Simplifying
r = -8

See similar equations:

| 28-k=35 | | (y-8)-(y+3)=7y | | 3X+13+12=14 | | c+0.7=2.3 | | 4(x-9)=16x | | 0.5=0.5i-2 | | 12+3x+13=14 | | -5.1+a=-6.6 | | 28=y+14 | | 26x+14=5(5x+5) | | w-83=-100 | | 0=19+t | | 2X+1=3X-11 | | 7+2X+1=3X-11 | | y+80=-45 | | n-24=-16 | | -54+m=82 | | 30x^2-44x+16=0 | | y+8=21 | | a-9=13 | | 4x-3(x-2)=16 | | 250+14h=22h | | 3=5x+12 | | t+(2t+4)=-5 | | 8x/3-5x/4=-13 | | 5/25=y/85 | | -(5b+5)-5=1-(5b-1) | | -36=4w | | 11=3-7x | | X^3-2X+0.5=0 | | X^3-2X-0.5=0 | | 22=2c |

Equations solver categories