31(a-1)=62(a+1)

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Solution for 31(a-1)=62(a+1) equation:


Simplifying
31(a + -1) = 62(a + 1)

Reorder the terms:
31(-1 + a) = 62(a + 1)
(-1 * 31 + a * 31) = 62(a + 1)
(-31 + 31a) = 62(a + 1)

Reorder the terms:
-31 + 31a = 62(1 + a)
-31 + 31a = (1 * 62 + a * 62)
-31 + 31a = (62 + 62a)

Solving
-31 + 31a = 62 + 62a

Solving for variable 'a'.

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

Add '-62a' to each side of the equation.
-31 + 31a + -62a = 62 + 62a + -62a

Combine like terms: 31a + -62a = -31a
-31 + -31a = 62 + 62a + -62a

Combine like terms: 62a + -62a = 0
-31 + -31a = 62 + 0
-31 + -31a = 62

Add '31' to each side of the equation.
-31 + 31 + -31a = 62 + 31

Combine like terms: -31 + 31 = 0
0 + -31a = 62 + 31
-31a = 62 + 31

Combine like terms: 62 + 31 = 93
-31a = 93

Divide each side by '-31'.
a = -3

Simplifying
a = -3

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