3a-5(7a-5)=-135

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Solution for 3a-5(7a-5)=-135 equation:


Simplifying
3a + -5(7a + -5) = -135

Reorder the terms:
3a + -5(-5 + 7a) = -135
3a + (-5 * -5 + 7a * -5) = -135
3a + (25 + -35a) = -135

Reorder the terms:
25 + 3a + -35a = -135

Combine like terms: 3a + -35a = -32a
25 + -32a = -135

Solving
25 + -32a = -135

Solving for variable 'a'.

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

Add '-25' to each side of the equation.
25 + -25 + -32a = -135 + -25

Combine like terms: 25 + -25 = 0
0 + -32a = -135 + -25
-32a = -135 + -25

Combine like terms: -135 + -25 = -160
-32a = -160

Divide each side by '-32'.
a = 5

Simplifying
a = 5

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