390=7.5r+7.5(r+33.4)

Simple and best practice solution for 390=7.5r+7.5(r+33.4) 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 390=7.5r+7.5(r+33.4) equation: 


Simplifying
390 = 7.5r + 7.5(r + 33.4)

Reorder the terms:
390 = 7.5r + 7.5(33.4 + r)
390 = 7.5r + (33.4 * 7.5 + r * 7.5)
390 = 7.5r + (250.5 + 7.5r)

Reorder the terms:
390 = 250.5 + 7.5r + 7.5r

Combine like terms: 7.5r + 7.5r = 15r
390 = 250.5 + 15r

Solving
390 = 250.5 + 15r

Solving for variable 'r'.

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

Add '-15r' to each side of the equation.
390 + -15r = 250.5 + 15r + -15r

Combine like terms: 15r + -15r = 0
390 + -15r = 250.5 + 0
390 + -15r = 250.5

Add '-390' to each side of the equation.
390 + -390 + -15r = 250.5 + -390

Combine like terms: 390 + -390 = 0
0 + -15r = 250.5 + -390
-15r = 250.5 + -390

Combine like terms: 250.5 + -390 = -139.5
-15r = -139.5

Divide each side by '-15'.
r = 9.3

Simplifying
r = 9.3

See similar equations:

| 3(2r+11)=-3-4(2r-12) | | 338=6.5r+6.5(r+31.8) | | 8(1+5x)=10(8-4x)+8 | | 9x+5y=300 | | 4k^2-8k-4=0 | | 3x=127 | | 21y^2-2y+2= | | y+y^3=10 | | 7k-7(5k+7)=-105 | | 3x-8sin(x/2)? | | Lne^5/11 | | -3n+-37=4(-3+-7n) | | 4X(X+6Y+Z)= | | 0.5+7.5=0.14+8.5 | | 40x^2-32=0 | | 1/3x-2/9=-19/99 | | 4(b+4)=2b+22 | | 5x-28=2x-10 | | 5x-23=2x-10 | | 10x-2.4=8x | | 9(b+7)=32 | | 2x-13=7x-48 | | 14/x=100/x=146/73=300/x | | -2x+13=3x-7 | | 1+cosx=1 | | 3.984-(2.61/1.4) | | 4(-1+-n)=24+3n | | Ydx+(xy+x-3y)=o | | 2x-17=4x-37 | | 10x-5.5=9x | | -1/4a-4=4 | | 363/88=33/x |

Equations solver categories