8+4a+2b-1=7

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Solution for 8+4a+2b-1=7 equation:


Simplifying
8 + 4a + 2b + -1 = 7

Reorder the terms:
8 + -1 + 4a + 2b = 7

Combine like terms: 8 + -1 = 7
7 + 4a + 2b = 7

Add '-7' to each side of the equation.
7 + 4a + -7 + 2b = 7 + -7

Reorder the terms:
7 + -7 + 4a + 2b = 7 + -7

Combine like terms: 7 + -7 = 0
0 + 4a + 2b = 7 + -7
4a + 2b = 7 + -7

Combine like terms: 7 + -7 = 0
4a + 2b = 0

Solving
4a + 2b = 0

Solving for variable 'a'.

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

Add '-2b' to each side of the equation.
4a + 2b + -2b = 0 + -2b

Combine like terms: 2b + -2b = 0
4a + 0 = 0 + -2b
4a = 0 + -2b
Remove the zero:
4a = -2b

Divide each side by '4'.
a = -0.5b

Simplifying
a = -0.5b

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