2-4a=20-10(2a+5)

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Solution for 2-4a=20-10(2a+5) equation:


Simplifying
2 + -4a = 20 + -10(2a + 5)

Reorder the terms:
2 + -4a = 20 + -10(5 + 2a)
2 + -4a = 20 + (5 * -10 + 2a * -10)
2 + -4a = 20 + (-50 + -20a)

Combine like terms: 20 + -50 = -30
2 + -4a = -30 + -20a

Solving
2 + -4a = -30 + -20a

Solving for variable 'a'.

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

Add '20a' to each side of the equation.
2 + -4a + 20a = -30 + -20a + 20a

Combine like terms: -4a + 20a = 16a
2 + 16a = -30 + -20a + 20a

Combine like terms: -20a + 20a = 0
2 + 16a = -30 + 0
2 + 16a = -30

Add '-2' to each side of the equation.
2 + -2 + 16a = -30 + -2

Combine like terms: 2 + -2 = 0
0 + 16a = -30 + -2
16a = -30 + -2

Combine like terms: -30 + -2 = -32
16a = -32

Divide each side by '16'.
a = -2

Simplifying
a = -2

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