5(2r-1)-2(3r+8)=15

Simple and best practice solution for 5(2r-1)-2(3r+8)=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 5(2r-1)-2(3r+8)=15 equation:


Simplifying
5(2r + -1) + -2(3r + 8) = 15

Reorder the terms:
5(-1 + 2r) + -2(3r + 8) = 15
(-1 * 5 + 2r * 5) + -2(3r + 8) = 15
(-5 + 10r) + -2(3r + 8) = 15

Reorder the terms:
-5 + 10r + -2(8 + 3r) = 15
-5 + 10r + (8 * -2 + 3r * -2) = 15
-5 + 10r + (-16 + -6r) = 15

Reorder the terms:
-5 + -16 + 10r + -6r = 15

Combine like terms: -5 + -16 = -21
-21 + 10r + -6r = 15

Combine like terms: 10r + -6r = 4r
-21 + 4r = 15

Solving
-21 + 4r = 15

Solving for variable 'r'.

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

Add '21' to each side of the equation.
-21 + 21 + 4r = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 4r = 15 + 21
4r = 15 + 21

Combine like terms: 15 + 21 = 36
4r = 36

Divide each side by '4'.
r = 9

Simplifying
r = 9

See similar equations:

| -4y+12=-4(2y+2) | | (2x+4)(4x-1)=0 | | 3x^2+30x+72=0 | | 5w^2=45 | | 24=16-4X | | 20m^2-14+2=0 | | -3y+9=19y-1 | | -3m-2=10 | | 3x+x=7x | | 13x-5=7+10x | | (5x/x+1)=30/9 | | 5x^2-3x+1=-3 | | 6x^4+11x^2-10=0 | | -10x=50 | | 5(-5+x)=6x+1/5 | | 6x-13=-7 | | 16(p-2)=2y-2 | | 0.06(y-3)+0.16y=0.20y-0.3 | | -2h=6(h+4) | | 7-8[6-(4y-3)]= | | 0.2(x+3)=0.1(x-5) | | 46x-25x-63=-147 | | 5x+24=2x+2 | | 4x^3-4x^2-x=0 | | 0.06y-0.18+0.16y=0.20y-0.3 | | 2(a-2)-(4a+5)=3(5a+4)+13 | | w^2-24w+24=0 | | X=2(10+x) | | 7+a=2(2a-16) | | 9+9q=10+8q | | 2x=2(10+x) | | 10n+10=80 |

Equations solver categories