If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -2r + 21 = -7(8r + -2) + 7 Reorder the terms: 21 + -2r = -7(8r + -2) + 7 Reorder the terms: 21 + -2r = -7(-2 + 8r) + 7 21 + -2r = (-2 * -7 + 8r * -7) + 7 21 + -2r = (14 + -56r) + 7 Reorder the terms: 21 + -2r = 14 + 7 + -56r Combine like terms: 14 + 7 = 21 21 + -2r = 21 + -56r Add '-21' to each side of the equation. 21 + -21 + -2r = 21 + -21 + -56r Combine like terms: 21 + -21 = 0 0 + -2r = 21 + -21 + -56r -2r = 21 + -21 + -56r Combine like terms: 21 + -21 = 0 -2r = 0 + -56r -2r = -56r Solving -2r = -56r Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '56r' to each side of the equation. -2r + 56r = -56r + 56r Combine like terms: -2r + 56r = 54r 54r = -56r + 56r Combine like terms: -56r + 56r = 0 54r = 0 Divide each side by '54'. r = 0 Simplifying r = 0
| 4+3i+3=4i+6 | | -9k-36=72 | | 1.5x+2y=1500 | | 2m+m-8=1 | | -2=3(x+6) | | 3x+33=5(1-5x) | | x^2-y^2=12.5 | | -7[3x-1]+8= | | 6[-2y+4]-5y= | | a+7=3+7 | | 36x^3-176x^2+128x=0 | | y+9=4(x-2) | | 36a^2-66a-210=0 | | 6r^2-12r-48=0 | | y+4=2(x-9) | | 28n^3+284n^2+40n=0 | | y-9=2x+4 | | 25p^2-105p+90=0 | | 10k^2-76k-126=0 | | x^2+3*x-5*(x-4)=2x^2+2*x | | x-11/2=-5 | | 2x^2-5x-4.5=0 | | 2y+3=4-7y | | -2/5(10x-15)=30 | | 6x(-12)=-72 | | 4e+7e-5= | | 1*7/8 | | x=ln[(x^2+1)2x+1] | | x=ln[(x^2+1)(2x+1)] | | f(x)=ln[(x^2+1)(2x+1)] | | 9+19=21 | | 3x^2+18=5x^2 |