18-1(2a-5)-2a-4=3a+5

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Solution for 18-1(2a-5)-2a-4=3a+5 equation:


Simplifying
18 + -1(2a + -5) + -2a + -4 = 3a + 5

Reorder the terms:
18 + -1(-5 + 2a) + -2a + -4 = 3a + 5
18 + (-5 * -1 + 2a * -1) + -2a + -4 = 3a + 5
18 + (5 + -2a) + -2a + -4 = 3a + 5

Reorder the terms:
18 + 5 + -4 + -2a + -2a = 3a + 5

Combine like terms: 18 + 5 = 23
23 + -4 + -2a + -2a = 3a + 5

Combine like terms: 23 + -4 = 19
19 + -2a + -2a = 3a + 5

Combine like terms: -2a + -2a = -4a
19 + -4a = 3a + 5

Reorder the terms:
19 + -4a = 5 + 3a

Solving
19 + -4a = 5 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
19 + -4a + -3a = 5 + 3a + -3a

Combine like terms: -4a + -3a = -7a
19 + -7a = 5 + 3a + -3a

Combine like terms: 3a + -3a = 0
19 + -7a = 5 + 0
19 + -7a = 5

Add '-19' to each side of the equation.
19 + -19 + -7a = 5 + -19

Combine like terms: 19 + -19 = 0
0 + -7a = 5 + -19
-7a = 5 + -19

Combine like terms: 5 + -19 = -14
-7a = -14

Divide each side by '-7'.
a = 2

Simplifying
a = 2

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