7a=2(a-20)

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Solution for 7a=2(a-20) equation:


Simplifying
7a = 2(a + -20)

Reorder the terms:
7a = 2(-20 + a)
7a = (-20 * 2 + a * 2)
7a = (-40 + 2a)

Solving
7a = -40 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7a + -2a = -40 + 2a + -2a

Combine like terms: 7a + -2a = 5a
5a = -40 + 2a + -2a

Combine like terms: 2a + -2a = 0
5a = -40 + 0
5a = -40

Divide each side by '5'.
a = -8

Simplifying
a = -8

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