r/2+9=30

Simple and best practice solution for r/2+9=30 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/2+9=30 equation: 



r/2+9=30

We move all terms to the left:

r/2+9-(30)=0

We add all the numbers together, and all the variables

r/2-21=0

We multiply all the terms by the denominator


r-21*2=0

We add all the numbers together, and all the variables

r-42=0

We move all terms containing r to the left, all other terms to the right

r=42

See similar equations:

| (-2(-7x+5))-7=40-5x | | 11x+2=5x+21 | | 3u-15=21 | | -1/4(x+2)-5=x | | 4w+8=40 | | 117-w=161 | | -1/4(x+2)=5=x | | 210=51-x | | 178-y=234 | | 123-y=207 | | (4x-1)^2=(2x+1)^2 | | 155=21-x | | 7x-20=2x+15 | | 6+31=8t-14 | | 2x+23+3x=57 | | 1/(1-0.95x)=2 | | 13p+15=-11 | | 3m/5=-18 | | 3÷5x=9 5+x=-4 | | 8x+8=12x-4 | | -8z=120-2z | | 10+3y-5=2y+2-y | | 5+x=-4 | | 80°+76°+x°+x°=360 | | -7p/2=3p | | 5+7a=4a~13 | | 8a/3=-56 | | -18x+203=59-6x | | 9y+4+4y+7=76 | | 2+2x/4=6x/4 | | 4x-7(2x)=8 | | T=20+1/3t |

Equations solver categories