If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (x + 7)(x + 3) + -1x(x + 1) = 21 Reorder the terms: (7 + x)(x + 3) + -1x(x + 1) = 21 Reorder the terms: (7 + x)(3 + x) + -1x(x + 1) = 21 Multiply (7 + x) * (3 + x) (7(3 + x) + x(3 + x)) + -1x(x + 1) = 21 ((3 * 7 + x * 7) + x(3 + x)) + -1x(x + 1) = 21 ((21 + 7x) + x(3 + x)) + -1x(x + 1) = 21 (21 + 7x + (3 * x + x * x)) + -1x(x + 1) = 21 (21 + 7x + (3x + x2)) + -1x(x + 1) = 21 Combine like terms: 7x + 3x = 10x (21 + 10x + x2) + -1x(x + 1) = 21 Reorder the terms: 21 + 10x + x2 + -1x(1 + x) = 21 21 + 10x + x2 + (1 * -1x + x * -1x) = 21 21 + 10x + x2 + (-1x + -1x2) = 21 Reorder the terms: 21 + 10x + -1x + x2 + -1x2 = 21 Combine like terms: 10x + -1x = 9x 21 + 9x + x2 + -1x2 = 21 Combine like terms: x2 + -1x2 = 0 21 + 9x + 0 = 21 21 + 9x = 21 Add '-21' to each side of the equation. 21 + -21 + 9x = 21 + -21 Combine like terms: 21 + -21 = 0 0 + 9x = 21 + -21 9x = 21 + -21 Combine like terms: 21 + -21 = 0 9x = 0 Solving 9x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '9'. x = 0 Simplifying x = 0
| 8x-12=2x+24 | | -300/-20 | | 417/x=38/2 | | (10)(-3)= | | 2n^2=8-15n | | 12.98=8.76+M | | 2x-6=2x-10+4 | | -w+4(-w+3)= | | 3(3)(3)(3)(3)=x | | 8-3x=2x-22 | | 7x/4-7/1=42 | | (14/15)/(6/7) | | (3)(-9)= | | 3*(3/5) | | 8(8)(8)(8)(8)=x | | x+4+3x=75 | | (-8)(-7)= | | 14/15/6/7 | | 3a/5-a/2=1/20 | | 8x+2(4-x)=44 | | 3-x/8=-32 | | (-8)(5)= | | (x^3/2)-x+(x^1/2)=0 | | 9+2(9n+12)=-11+24n+18 | | x^3/2-x+x^1/2=0 | | 2(2x)+2(x+3)=0 | | (11x+13x)3=13x-1 | | x^3/2-x=x^1/2 | | 50=80R | | 8x+2=3x-3 | | 5k^2+35=-32k | | 3/11=x/10 |