-4(a+2.5)-5(1.2a-4)=

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Solution for -4(a+2.5)-5(1.2a-4)= equation:


Simplifying
-4(a + 2.5) + -5(1.2a + -4) = 0

Reorder the terms:
-4(2.5 + a) + -5(1.2a + -4) = 0
(2.5 * -4 + a * -4) + -5(1.2a + -4) = 0
(-10 + -4a) + -5(1.2a + -4) = 0

Reorder the terms:
-10 + -4a + -5(-4 + 1.2a) = 0
-10 + -4a + (-4 * -5 + 1.2a * -5) = 0
-10 + -4a + (20 + -6a) = 0

Reorder the terms:
-10 + 20 + -4a + -6a = 0

Combine like terms: -10 + 20 = 10
10 + -4a + -6a = 0

Combine like terms: -4a + -6a = -10a
10 + -10a = 0

Solving
10 + -10a = 0

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + -10a = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -10a = 0 + -10
-10a = 0 + -10

Combine like terms: 0 + -10 = -10
-10a = -10

Divide each side by '-10'.
a = 1

Simplifying
a = 1

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