5a+10(a+5)+25(a+15)=825

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Solution for 5a+10(a+5)+25(a+15)=825 equation:


Simplifying
5a + 10(a + 5) + 25(a + 15) = 825

Reorder the terms:
5a + 10(5 + a) + 25(a + 15) = 825
5a + (5 * 10 + a * 10) + 25(a + 15) = 825
5a + (50 + 10a) + 25(a + 15) = 825

Reorder the terms:
5a + 50 + 10a + 25(15 + a) = 825
5a + 50 + 10a + (15 * 25 + a * 25) = 825
5a + 50 + 10a + (375 + 25a) = 825

Reorder the terms:
50 + 375 + 5a + 10a + 25a = 825

Combine like terms: 50 + 375 = 425
425 + 5a + 10a + 25a = 825

Combine like terms: 5a + 10a = 15a
425 + 15a + 25a = 825

Combine like terms: 15a + 25a = 40a
425 + 40a = 825

Solving
425 + 40a = 825

Solving for variable 'a'.

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

Add '-425' to each side of the equation.
425 + -425 + 40a = 825 + -425

Combine like terms: 425 + -425 = 0
0 + 40a = 825 + -425
40a = 825 + -425

Combine like terms: 825 + -425 = 400
40a = 400

Divide each side by '40'.
a = 10

Simplifying
a = 10

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