3(a-5)-4(2a+5)+6(a+2a)=4

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Solution for 3(a-5)-4(2a+5)+6(a+2a)=4 equation:


Simplifying
3(a + -5) + -4(2a + 5) + 6(a + 2a) = 4

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

Reorder the terms:
-15 + 3a + -4(5 + 2a) + 6(a + 2a) = 4
-15 + 3a + (5 * -4 + 2a * -4) + 6(a + 2a) = 4
-15 + 3a + (-20 + -8a) + 6(a + 2a) = 4

Combine like terms: a + 2a = 3a
-15 + 3a + -20 + -8a + 6(3a) = 4

Remove parenthesis around (3a)
-15 + 3a + -20 + -8a + 6 * 3a = 4

Multiply 6 * 3
-15 + 3a + -20 + -8a + 18a = 4

Reorder the terms:
-15 + -20 + 3a + -8a + 18a = 4

Combine like terms: -15 + -20 = -35
-35 + 3a + -8a + 18a = 4

Combine like terms: 3a + -8a = -5a
-35 + -5a + 18a = 4

Combine like terms: -5a + 18a = 13a
-35 + 13a = 4

Solving
-35 + 13a = 4

Solving for variable 'a'.

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

Add '35' to each side of the equation.
-35 + 35 + 13a = 4 + 35

Combine like terms: -35 + 35 = 0
0 + 13a = 4 + 35
13a = 4 + 35

Combine like terms: 4 + 35 = 39
13a = 39

Divide each side by '13'.
a = 3

Simplifying
a = 3

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