4x^2-31x+43=-7x+8

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Solution for 4x^2-31x+43=-7x+8 equation: 


Simplifying
4x2 + -31x + 43 = -7x + 8

Reorder the terms:
43 + -31x + 4x2 = -7x + 8

Reorder the terms:
43 + -31x + 4x2 = 8 + -7x

Solving
43 + -31x + 4x2 = 8 + -7x

Solving for variable 'x'.

Reorder the terms:
43 + -8 + -31x + 7x + 4x2 = 8 + -7x + -8 + 7x

Combine like terms: 43 + -8 = 35
35 + -31x + 7x + 4x2 = 8 + -7x + -8 + 7x

Combine like terms: -31x + 7x = -24x
35 + -24x + 4x2 = 8 + -7x + -8 + 7x

Reorder the terms:
35 + -24x + 4x2 = 8 + -8 + -7x + 7x

Combine like terms: 8 + -8 = 0
35 + -24x + 4x2 = 0 + -7x + 7x
35 + -24x + 4x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
35 + -24x + 4x2 = 0

Factor a trinomial.
(5 + -2x)(7 + -2x) = 0


Subproblem 1
Set the factor '(5 + -2x)' equal to zero and attempt to solve:

Simplifying
5 + -2x = 0

Solving
5 + -2x = 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 + -2x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -2x = 0 + -5
-2x = 0 + -5

Combine like terms: 0 + -5 = -5
-2x = -5

Divide each side by '-2'.
x = 2.5

Simplifying
x = 2.5

Subproblem 2
Set the factor '(7 + -2x)' equal to zero and attempt to solve:

Simplifying
7 + -2x = 0

Solving
7 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + -2x = 0 + -7

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

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

Divide each side by '-2'.
x = 3.5

Simplifying
x = 3.5
Solution
x = {2.5, 3.5}

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