7x(-x+10)=63

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Solution for 7x(-x+10)=63 equation:


Simplifying
7x(-1x + 10) = 63

Reorder the terms:
7x(10 + -1x) = 63
(10 * 7x + -1x * 7x) = 63
(70x + -7x2) = 63

Solving
70x + -7x2 = 63

Solving for variable 'x'.

Reorder the terms:
-63 + 70x + -7x2 = 63 + -63

Combine like terms: 63 + -63 = 0
-63 + 70x + -7x2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(-9 + 10x + -1x2) = 0

Factor a trinomial.
7((-9 + x)(1 + -1x)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-9 + x)' equal to zero and attempt to solve: Simplifying -9 + x = 0 Solving -9 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + x = 0 + 9 x = 0 + 9 Combine like terms: 0 + 9 = 9 x = 9 Simplifying x = 9

Subproblem 2

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

Solution

x = {9, 1}

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