4r-15=-21+6r

Simple and best practice solution for 4r-15=-21+6r 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 4r-15=-21+6r equation:


Simplifying
4r + -15 = -21 + 6r

Reorder the terms:
-15 + 4r = -21 + 6r

Solving
-15 + 4r = -21 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
-15 + 4r + -6r = -21 + 6r + -6r

Combine like terms: 4r + -6r = -2r
-15 + -2r = -21 + 6r + -6r

Combine like terms: 6r + -6r = 0
-15 + -2r = -21 + 0
-15 + -2r = -21

Add '15' to each side of the equation.
-15 + 15 + -2r = -21 + 15

Combine like terms: -15 + 15 = 0
0 + -2r = -21 + 15
-2r = -21 + 15

Combine like terms: -21 + 15 = -6
-2r = -6

Divide each side by '-2'.
r = 3

Simplifying
r = 3

See similar equations:

| x^6+26x^5+27x^4+48x^3+135x^2+50x+125=0 | | 36/n=14/6 | | 3-6a-21=3a+10-2a | | z^2+(2-i)z-(1+7i)=0 | | n/7=10/35 | | y^2-15y+16=0 | | x+20=x*x | | 6(3+6x)-4=86 | | 210=(x+2)(x+6) | | -2x=-4(1-3x) | | 19x=2x+4 | | 1-x/3=2 | | 3.14x^2+2.2x+x=-77 | | A=8pieD | | 3.14x^2+2.2x=-77 | | 4x-1x=0 | | 3.14x^2+2.2x+77=0 | | 3x+2=4(x-2) | | x^4-10x^2+1=0 | | (8x-27)=(5x) | | x(2.2)=(3.14)x^2+77 | | 5x-9/4=-2 | | x(2.2)=(3.14)r^2+77 | | (3X^2+4XY)dx+(2x+2y)dy=0 | | 8x^2-6x+2=0 | | 3(2x+1)=7-2(x+5) | | -7x+15=3(3x+9) | | 24-x-3=12+18-4 | | -2k+60=8k | | -5/7x-2-7 | | 4a+(-4)*3= | | sin(x)-2sin^2(x)=0 |

Equations solver categories