(40+a)2+(30+a)2=156

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Solution for (40+a)2+(30+a)2=156 equation:


Simplifying
(40 + a) * 2 + (30 + a) * 2 = 156

Reorder the terms for easier multiplication:
2(40 + a) + (30 + a) * 2 = 156
(40 * 2 + a * 2) + (30 + a) * 2 = 156
(80 + 2a) + (30 + a) * 2 = 156

Reorder the terms for easier multiplication:
80 + 2a + 2(30 + a) = 156
80 + 2a + (30 * 2 + a * 2) = 156
80 + 2a + (60 + 2a) = 156

Reorder the terms:
80 + 60 + 2a + 2a = 156

Combine like terms: 80 + 60 = 140
140 + 2a + 2a = 156

Combine like terms: 2a + 2a = 4a
140 + 4a = 156

Solving
140 + 4a = 156

Solving for variable 'a'.

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

Add '-140' to each side of the equation.
140 + -140 + 4a = 156 + -140

Combine like terms: 140 + -140 = 0
0 + 4a = 156 + -140
4a = 156 + -140

Combine like terms: 156 + -140 = 16
4a = 16

Divide each side by '4'.
a = 4

Simplifying
a = 4

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