r+(3+r)=15

Simple and best practice solution for r+(3+r)=15 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+(3+r)=15 equation:


Simplifying
r + (3 + r) = 15

Remove parenthesis around (3 + r)
r + 3 + r = 15

Reorder the terms:
3 + r + r = 15

Combine like terms: r + r = 2r
3 + 2r = 15

Solving
3 + 2r = 15

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + -3 + 2r = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 2r = 15 + -3
2r = 15 + -3

Combine like terms: 15 + -3 = 12
2r = 12

Divide each side by '2'.
r = 6

Simplifying
r = 6

See similar equations:

| x*80%=80 | | 16(x+3)=4(4x+2)+40 | | 4y-3x+1=0 | | s-13=-19 | | y-8+-5y=-48 | | w+7/8=-1/2 | | 367=2x-181 | | 6(10x-6)=1 | | 6x(6x)= | | 17-(4m+7)=3+2m-11 | | 4t+18t-3=7t+129-5t | | 7x^2+19x=2x^2-25x+9 | | 9+7x=6+5 | | (3x+11/5)+(x+17/4)=9 | | 7(4x^2)= | | 4t+18-3=7t+129-5t | | 17x^2+48x=9 | | 3/2+3/4+3/8 | | 3u+6=7(u+2) | | 2x+3x=4x-8 | | -30=-2(4y+3) | | 9-(x-1)=-45 | | 7x^2+48=9 | | 5(x+2)=7x+8 | | -2v-34=2(v-1) | | 3x^3-2x^2+18-12=0 | | 3p-5(p+4)+9=-11+15p | | 3(x+3)=8x-31 | | 9+x-1=-45 | | 4y-1=-9 | | 5(3x-7)=55 | | -12(x-2)=-9(1+7x) |

Equations solver categories