If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying a2 + -1a = 21 + 3a Reorder the terms: -1a + a2 = 21 + 3a Solving -1a + a2 = 21 + 3a Solving for variable 'a'. Reorder the terms: -21 + -1a + -3a + a2 = 21 + 3a + -21 + -3a Combine like terms: -1a + -3a = -4a -21 + -4a + a2 = 21 + 3a + -21 + -3a Reorder the terms: -21 + -4a + a2 = 21 + -21 + 3a + -3a Combine like terms: 21 + -21 = 0 -21 + -4a + a2 = 0 + 3a + -3a -21 + -4a + a2 = 3a + -3a Combine like terms: 3a + -3a = 0 -21 + -4a + a2 = 0 Factor a trinomial. (-3 + -1a)(7 + -1a) = 0Subproblem 1
Set the factor '(-3 + -1a)' equal to zero and attempt to solve: Simplifying -3 + -1a = 0 Solving -3 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1a = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1a = 0 + 3 -1a = 0 + 3 Combine like terms: 0 + 3 = 3 -1a = 3 Divide each side by '-1'. a = -3 Simplifying a = -3Subproblem 2
Set the factor '(7 + -1a)' equal to zero and attempt to solve: Simplifying 7 + -1a = 0 Solving 7 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1a = 0 + -7 -1a = 0 + -7 Combine like terms: 0 + -7 = -7 -1a = -7 Divide each side by '-1'. a = 7 Simplifying a = 7Solution
a = {-3, 7}
| 3/4k-6=7 | | 2.10+0.80n=11.70 | | -4(-6b+3)=-30+6b | | xx/66+10=5 | | 0.75k-6=7 | | (5y/y-5)-(25/y+5) | | (5y/y-5)-(25/y/5) | | 7(3n+1)=8(5n+5)+3 | | 2.4(X^1/4) | | x^2+35x+250=0 | | x^2+14w-1887=0 | | 4(6-x)=4 | | 50+x=69 | | 8x+30=7x | | 4x-2(x-5)=-3+4x+1 | | 4(1+8n)=-124 | | 0.75m+3=15 | | 3/4m+3=15 | | 17-x=-12 | | 2x+12=2y-8+3x+36 | | 4k+1.5k=50 | | 8x-2+5x=8 | | x^2+3x+196=0 | | s+31/2s+10=64 | | (1/x)+(1/x+18)=1/15 | | 1.5d-0.5=7 | | 6+v/8=47 | | -13+m=17 | | -3k=12-k | | 42-(2c+4)=4(c+6)+c | | x+10=4x+15 | | 9y-3=-14 |