iii). ( 7a + 2b)
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Simplifying
7a + 2b = 1
Solving
7a + 2b = 1
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.
7a + 2b + -2b = 1 + -2b
Combine like terms: 2b + -2b = 0
7a + 0 = 1 + -2b
7a = 1 + -2b
Divide each side by '7'.
a = 0.1428571429 + -0.2857142857b
Simplifying
a = 0.1428571429 + -0.2857142857b
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