If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 7x(x + -3) = 7x2 + -21x Reorder the terms: 7x(-3 + x) = 7x2 + -21x (-3 * 7x + x * 7x) = 7x2 + -21x (-21x + 7x2) = 7x2 + -21x Reorder the terms: -21x + 7x2 = -21x + 7x2 Add '21x' to each side of the equation. -21x + 21x + 7x2 = -21x + 21x + 7x2 Combine like terms: -21x + 21x = 0 0 + 7x2 = -21x + 21x + 7x2 7x2 = -21x + 21x + 7x2 Combine like terms: -21x + 21x = 0 7x2 = 0 + 7x2 7x2 = 7x2 Add '-7x2' to each side of the equation. 7x2 + -7x2 = 7x2 + -7x2 Combine like terms: 7x2 + -7x2 = 0 0 = 7x2 + -7x2 Combine like terms: 7x2 + -7x2 = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
| a+b+c=4c | | 30.03=a+18.33 | | 2(a+8)=38 | | 3a-2x= | | 7x(x-3)=7x^2-21x | | -19.18+m=-12.18 | | 2x^5+14=0 | | 6x+2x=10x-2x | | 7x+15+10x-9=180 | | 3-3(2x-5)=2x-6 | | -19.3=b-14.9 | | 5q=-7 | | 6x-5(2x-3)=5 | | -20.2=x-2.7 | | 6x^2+12xy-5yx= | | 4.2=-6.8+v | | s=4+7t-1+16t | | n-12.6=-7.7 | | -2x+40=0 | | n-12.6=-2.7 | | 5(x-5)+7=12+5x | | -11=p-13 | | 11-2x=4x-3 | | -29=a-17 | | 6z+7=25 | | 4-2(x+3)=6 | | 9xy^4+5x^4y= | | 4.5x-1=75.5 | | 2v+4=6 | | (9y+17)=(11y+17) | | 6(7-8a)=-8(6a+5) | | 40+5w=70+2w |