3a-2[4-2(a-5)]=5a-19

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Solution for 3a-2[4-2(a-5)]=5a-19 equation:


Simplifying
3a + -2[4 + -2(a + -5)] = 5a + -19

Reorder the terms:
3a + -2[4 + -2(-5 + a)] = 5a + -19
3a + -2[4 + (-5 * -2 + a * -2)] = 5a + -19
3a + -2[4 + (10 + -2a)] = 5a + -19

Combine like terms: 4 + 10 = 14
3a + -2[14 + -2a] = 5a + -19
3a + [14 * -2 + -2a * -2] = 5a + -19
3a + [-28 + 4a] = 5a + -19

Reorder the terms:
-28 + 3a + 4a = 5a + -19

Combine like terms: 3a + 4a = 7a
-28 + 7a = 5a + -19

Reorder the terms:
-28 + 7a = -19 + 5a

Solving
-28 + 7a = -19 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-28 + 7a + -5a = -19 + 5a + -5a

Combine like terms: 7a + -5a = 2a
-28 + 2a = -19 + 5a + -5a

Combine like terms: 5a + -5a = 0
-28 + 2a = -19 + 0
-28 + 2a = -19

Add '28' to each side of the equation.
-28 + 28 + 2a = -19 + 28

Combine like terms: -28 + 28 = 0
0 + 2a = -19 + 28
2a = -19 + 28

Combine like terms: -19 + 28 = 9
2a = 9

Divide each side by '2'.
a = 4.5

Simplifying
a = 4.5

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