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

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


Simplifying
3a + 4(a + 5) + -3 = 0

Reorder the terms:
3a + 4(5 + a) + -3 = 0
3a + (5 * 4 + a * 4) + -3 = 0
3a + (20 + 4a) + -3 = 0

Reorder the terms:
20 + -3 + 3a + 4a = 0

Combine like terms: 20 + -3 = 17
17 + 3a + 4a = 0

Combine like terms: 3a + 4a = 7a
17 + 7a = 0

Solving
17 + 7a = 0

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + 7a = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 7a = 0 + -17
7a = 0 + -17

Combine like terms: 0 + -17 = -17
7a = -17

Divide each side by '7'.
a = -2.428571429

Simplifying
a = -2.428571429

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