x(a+1)-x(a-1)=a+4

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Solution for x(a+1)-x(a-1)=a+4 equation:


Simplifying
x(a + 1) + -1x(a + -1) = a + 4

Reorder the terms:
x(1 + a) + -1x(a + -1) = a + 4
(1 * x + a * x) + -1x(a + -1) = a + 4

Reorder the terms:
(ax + 1x) + -1x(a + -1) = a + 4
(ax + 1x) + -1x(a + -1) = a + 4

Reorder the terms:
ax + 1x + -1x(-1 + a) = a + 4
ax + 1x + (-1 * -1x + a * -1x) = a + 4

Reorder the terms:
ax + 1x + (-1ax + 1x) = a + 4
ax + 1x + (-1ax + 1x) = a + 4

Reorder the terms:
ax + -1ax + 1x + 1x = a + 4

Combine like terms: ax + -1ax = 0
0 + 1x + 1x = a + 4
1x + 1x = a + 4

Combine like terms: 1x + 1x = 2x
2x = a + 4

Reorder the terms:
2x = 4 + a

Solving
2x = 4 + a

Solving for variable 'x'.

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

Divide each side by '2'.
x = 2 + 0.5a

Simplifying
x = 2 + 0.5a

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