(7x-y+4)(7x)=

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Solution for (7x-y+4)(7x)= equation:


Simplifying
(7x + -1y + 4)(7x) = 0

Reorder the terms:
(4 + 7x + -1y)(7x) = 0

Remove parenthesis around (7x)
(4 + 7x + -1y) * 7x = 0

Reorder the terms for easier multiplication:
7x(4 + 7x + -1y) = 0
(4 * 7x + 7x * 7x + -1y * 7x) = 0

Reorder the terms:
(28x + -7xy + 49x2) = 0
(28x + -7xy + 49x2) = 0

Solving
28x + -7xy + 49x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '7x'.
7x(4 + -1y + 7x) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(4 + -1y + 7x)' equal to zero and attempt to solve: Simplifying 4 + -1y + 7x = 0 Reorder the terms: 4 + 7x + -1y = 0 Solving 4 + 7x + -1y = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + 7x + -4 + -1y = 0 + -4 Reorder the terms: 4 + -4 + 7x + -1y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 7x + -1y = 0 + -4 7x + -1y = 0 + -4 Combine like terms: 0 + -4 = -4 7x + -1y = -4 Add 'y' to each side of the equation. 7x + -1y + y = -4 + y Combine like terms: -1y + y = 0 7x + 0 = -4 + y 7x = -4 + y Divide each side by '7'. x = -0.5714285714 + 0.1428571429y Simplifying x = -0.5714285714 + 0.1428571429y

Solution

x = {0, -0.5714285714 + 0.1428571429y}

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