10r+10(r+0.4)=20

Simple and best practice solution for 10r+10(r+0.4)=20 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 10r+10(r+0.4)=20 equation:


Simplifying
10r + 10(r + 0.4) = 20

Reorder the terms:
10r + 10(0.4 + r) = 20
10r + (0.4 * 10 + r * 10) = 20
10r + (4 + 10r) = 20

Reorder the terms:
4 + 10r + 10r = 20

Combine like terms: 10r + 10r = 20r
4 + 20r = 20

Solving
4 + 20r = 20

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 20r = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 20r = 20 + -4
20r = 20 + -4

Combine like terms: 20 + -4 = 16
20r = 16

Divide each side by '20'.
r = 0.8

Simplifying
r = 0.8

See similar equations:

| 4/3x-23/6=-31/6 | | 5x-3(4x+3)=61 | | 4/3x-35/6=-31/6 | | 7/2=x+4 | | d=70t | | -13/18=13/8(p+1) | | y-6=-4/7x | | -3(3v-4)=-7(v-2) | | 2x+13=-1+4x | | x-2/=6 | | 3(x-8)=-30+x | | 6x+-1=6 | | 9z+2=8 | | f(x)=-7x^2+3x+2 | | 5(1+8b)-3=-6(1-7b) | | (4+x)5=75 | | f(x)=x^2+9 | | 7+2b+2b=3b-1 | | 7(x-6)=(4-x)3 | | 3(3/4y)-y=63 | | -3x-6=-2x | | 5x-4(2x+12)=-78 | | (7+z)(5z-9)=0 | | a+4=5a-10 | | -11x^4y^3+33x^3y^5+55x^2y= | | 2z-4=12+z | | x=-7x^2+3x+2 | | (5ab^2)(-a^4)= | | 34y+7=14y-93 | | 8(5-h)=3(2h-4) | | 2(x+3)-5=2x-14 | | -3x-5y=22 |

Equations solver categories