140*3.14=2*3.14*r*10

Simple and best practice solution for 140*3.14=2*3.14*r*10 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 140*3.14=2*3.14*r*10 equation:


Simplifying
140 * 3.14 = 2 * 3.14r * 10

Multiply 140 * 3.14
439.6 = 2 * 3.14r * 10

Reorder the terms for easier multiplication:
439.6 = 2 * 3.14 * 10r

Multiply 2 * 3.14
439.6 = 6.28 * 10r

Multiply 6.28 * 10
439.6 = 62.8r

Solving
439.6 = 62.8r

Solving for variable 'r'.

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

Add '-62.8r' to each side of the equation.
439.6 + -62.8r = 62.8r + -62.8r

Combine like terms: 62.8r + -62.8r = 0.0
439.6 + -62.8r = 0.0

Add '-439.6' to each side of the equation.
439.6 + -439.6 + -62.8r = 0.0 + -439.6

Combine like terms: 439.6 + -439.6 = 0.0
0.0 + -62.8r = 0.0 + -439.6
-62.8r = 0.0 + -439.6

Combine like terms: 0.0 + -439.6 = -439.6
-62.8r = -439.6

Divide each side by '-62.8'.
r = 7

Simplifying
r = 7

See similar equations:

| 11d+5=5d+17 | | 2-6-(-9)=x | | 5x(-4)=1 | | 36-(6x)=(10x)-8 | | y=13x^3-15 | | 12r+2r-6r-3=13 | | 2(x-7)=3.2 | | 140*3.13=2*3.14*r*10 | | 3(x+3)+4x=3x-7 | | 7(a+8)=79.1 | | 3x*x=154 | | 9=k/36 | | 9y=27x+45 | | -16a+18a=-8 | | 5.2=3c-5 | | -7x+5+8x=10+2 | | 2x-14=x+18 | | 10=-2/3u | | 8y=24x+40 | | (3x-4)(2x-3)=0 | | 2h-2h+3h-2=13 | | 5ln(2x-3)=20 | | 5e-9=34 | | a=2b-1 | | 9*n=n+4 | | 2.19=x/2-x | | 1/3x1/4=7/12 | | 9p=47.7 | | 2x-14=2x-5 | | 2(-5)-7(3)+4= | | 14-6x=8-7x | | K+(k+3)+(k+5)=4k |

Equations solver categories