x(a-10)+y(7+b)=0

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Solution for x(a-10)+y(7+b)=0 equation:


Simplifying
x(a + -10) + y(7 + b) = 0

Reorder the terms:
x(-10 + a) + y(7 + b) = 0
(-10 * x + a * x) + y(7 + b) = 0

Reorder the terms:
(ax + -10x) + y(7 + b) = 0
(ax + -10x) + y(7 + b) = 0
ax + -10x + (7 * y + b * y) = 0

Reorder the terms:
ax + -10x + (by + 7y) = 0
ax + -10x + (by + 7y) = 0

Reorder the terms:
ax + by + -10x + 7y = 0

Solving
ax + by + -10x + 7y = 0

Solving for variable 'a'.

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

Add '-1by' to each side of the equation.
ax + by + -10x + -1by + 7y = 0 + -1by

Reorder the terms:
ax + by + -1by + -10x + 7y = 0 + -1by

Combine like terms: by + -1by = 0
ax + 0 + -10x + 7y = 0 + -1by
ax + -10x + 7y = 0 + -1by
Remove the zero:
ax + -10x + 7y = -1by

Add '10x' to each side of the equation.
ax + -10x + 10x + 7y = -1by + 10x

Combine like terms: -10x + 10x = 0
ax + 0 + 7y = -1by + 10x
ax + 7y = -1by + 10x

Add '-7y' to each side of the equation.
ax + 7y + -7y = -1by + 10x + -7y

Combine like terms: 7y + -7y = 0
ax + 0 = -1by + 10x + -7y
ax = -1by + 10x + -7y

Divide each side by 'x'.
a = -1bx-1y + 10 + -7x-1y

Simplifying
a = -1bx-1y + 10 + -7x-1y

Reorder the terms:
a = 10 + -1bx-1y + -7x-1y

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