70=2a-40

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Solution for 70=2a-40 equation:


Simplifying
70 = 2a + -40

Reorder the terms:
70 = -40 + 2a

Solving
70 = -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.
70 + -2a = -40 + 2a + -2a

Combine like terms: 2a + -2a = 0
70 + -2a = -40 + 0
70 + -2a = -40

Add '-70' to each side of the equation.
70 + -70 + -2a = -40 + -70

Combine like terms: 70 + -70 = 0
0 + -2a = -40 + -70
-2a = -40 + -70

Combine like terms: -40 + -70 = -110
-2a = -110

Divide each side by '-2'.
a = 55

Simplifying
a = 55

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