Question 668679
Starting with
{{{5 - (1/2)(b-6) = 4}}}
...
Multiply the entire equation by 2
10 - (b-6) = 8
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Distribute the -1
10 - b + 6 = 8
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Isolate b
b = 10 + 6 - 8
{{{highlight_green(b = 8)}}}
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