3=5-7r+8r

Simple and best practice solution for 3=5-7r+8r 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=5-7r+8r equation:


Simplifying
3 = 5 + -7r + 8r

Combine like terms: -7r + 8r = 1r
3 = 5 + 1r

Solving
3 = 5 + 1r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
3 + -1r = 5 + 1r + -1r

Combine like terms: 1r + -1r = 0
3 + -1r = 5 + 0
3 + -1r = 5

Add '-3' to each side of the equation.
3 + -3 + -1r = 5 + -3

Combine like terms: 3 + -3 = 0
0 + -1r = 5 + -3
-1r = 5 + -3

Combine like terms: 5 + -3 = 2
-1r = 2

Divide each side by '-1'.
r = -2

Simplifying
r = -2

See similar equations:

| 1/3d=30 | | 0.61x+220=357.25 | | -6x+4-3x-4=7x-16x-12 | | N-4(1+5n)=2 | | -5+n=n-7 | | C(a+b)-d=fsolvea | | 0.92x+240=462.64 | | 3[4x-5]=-13 | | 4m+12-5m-15=20 | | 3[4x-5]=13 | | 3x=-/5 | | 3x-99/5 | | 20=5(x-1)-(x-9) | | 3[4x-5]-7=6 | | X^12-36= | | -2v+4-v=7 | | p^2q^2-18-3q^2+6p^2= | | 4x-3(3x-9)=2(3x-9)+5x | | 3(5-2n)=-8n+13 | | 3p-8=-2p-18 | | 35=72-17x | | -11+2a=a-3 | | Ln(y)=4lnx-4x | | -5(4+7p)-7p=26+5 | | 15(32x+16)=32(12x+36) | | 3(k-5)-2(k+2)-14=27 | | 3p-8=-2p-8 | | -2(-9u+9)-u=2(u-2)-4 | | -5(1+8p)-2=8p+35 | | 3p-8=-2p+8 | | A^2+4a+18= | | 5/8÷15/16 |

Equations solver categories