3a-7(-5a-2)=318

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Solution for 3a-7(-5a-2)=318 equation:


Simplifying
3a + -7(-5a + -2) = 318

Reorder the terms:
3a + -7(-2 + -5a) = 318
3a + (-2 * -7 + -5a * -7) = 318
3a + (14 + 35a) = 318

Reorder the terms:
14 + 3a + 35a = 318

Combine like terms: 3a + 35a = 38a
14 + 38a = 318

Solving
14 + 38a = 318

Solving for variable 'a'.

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

Add '-14' to each side of the equation.
14 + -14 + 38a = 318 + -14

Combine like terms: 14 + -14 = 0
0 + 38a = 318 + -14
38a = 318 + -14

Combine like terms: 318 + -14 = 304
38a = 304

Divide each side by '38'.
a = 8

Simplifying
a = 8

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