7x=15-2x^2

Simple and best practice solution for 7x=15-2x^2 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 7x=15-2x^2 equation:


Simplifying
7x = 15 + -2x2

Solving
7x = 15 + -2x2

Solving for variable 'x'.

Reorder the terms:
-15 + 7x + 2x2 = 15 + -2x2 + -15 + 2x2

Reorder the terms:
-15 + 7x + 2x2 = 15 + -15 + -2x2 + 2x2

Combine like terms: 15 + -15 = 0
-15 + 7x + 2x2 = 0 + -2x2 + 2x2
-15 + 7x + 2x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
-15 + 7x + 2x2 = 0

Factor a trinomial.
(-5 + -1x)(3 + -2x) = 0

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Solution

x = {-5, 1.5}

See similar equations:

| 2x+5x+3= | | (2x-3)(4x+7)= | | 7x+14+2=3x-12+4x | | -4j+2=-6j | | 8+x=3x-2 | | 16w-3(4x+7)=6w-2w-21 | | 2x-11=11x+16 | | 3x-2(3x-9)=5(2x-7)+7x | | 7x-2x-9=0 | | 2x-2y=-12 | | 79-4x=32x+23 | | -2x+5y=-3 | | -106-7x=9x+22 | | 4x+11=-61-8x | | 155-5x=6x+23 | | 2x^2-16= | | .07x+x=55 | | 5n+5=2n+17 | | -8-6x=7-9x | | 2x+12=4x-10 | | v(5)-v(3)= | | 65-4x=8x+7 | | 17u+7=-10 | | -12=3(x+2) | | 65-4x=8x-14 | | 6(n+4)=-8 | | 6c-5=31 | | 33=3x+8 | | 4T+16-11= | | 6c-5=32 | | v-13=-28 | | 7+5x=55+x |

Equations solver categories