3(2a+5)=7a-4

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Solution for 3(2a+5)=7a-4 equation:


Simplifying
3(2a + 5) = 7a + -4

Reorder the terms:
3(5 + 2a) = 7a + -4
(5 * 3 + 2a * 3) = 7a + -4
(15 + 6a) = 7a + -4

Reorder the terms:
15 + 6a = -4 + 7a

Solving
15 + 6a = -4 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
15 + 6a + -7a = -4 + 7a + -7a

Combine like terms: 6a + -7a = -1a
15 + -1a = -4 + 7a + -7a

Combine like terms: 7a + -7a = 0
15 + -1a = -4 + 0
15 + -1a = -4

Add '-15' to each side of the equation.
15 + -15 + -1a = -4 + -15

Combine like terms: 15 + -15 = 0
0 + -1a = -4 + -15
-1a = -4 + -15

Combine like terms: -4 + -15 = -19
-1a = -19

Divide each side by '-1'.
a = 19

Simplifying
a = 19

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