a+157=-3a+9

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Solution for a+157=-3a+9 equation:


Simplifying
a + 157 = -3a + 9

Reorder the terms:
157 + a = -3a + 9

Reorder the terms:
157 + a = 9 + -3a

Solving
157 + a = 9 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
157 + a + 3a = 9 + -3a + 3a

Combine like terms: a + 3a = 4a
157 + 4a = 9 + -3a + 3a

Combine like terms: -3a + 3a = 0
157 + 4a = 9 + 0
157 + 4a = 9

Add '-157' to each side of the equation.
157 + -157 + 4a = 9 + -157

Combine like terms: 157 + -157 = 0
0 + 4a = 9 + -157
4a = 9 + -157

Combine like terms: 9 + -157 = -148
4a = -148

Divide each side by '4'.
a = -37

Simplifying
a = -37

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