Question 15: Find x knowing \(\frac{{x + 12}}{7} = \frac{1}{2}\)
\(\begin{aligned}&\frac{{x + 12}}{7} = \frac{1}{2}\\ &2.\left( {x + 12} \right) = 7\\ &x + 12 = \frac{7}{2}\\ &x = \frac{7}{2} – 12\\ &x = – \frac{{17}}{2}\end{aligned} \)
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