Question Number 453 by Karting7442 last updated on 25/Jan/15
$${solve}\:{for}\:{x}\:\:\:\mathrm{3}\left(\mathrm{14}{x}−\mathrm{15}\right)=−\mathrm{72} \\ $$
Answered by prakash jain last updated on 09/Jan/15
$$\mathrm{3}\left(\mathrm{14}{x}−\mathrm{15}\right)=−\mathrm{72} \\ $$$$\mathrm{42}{x}−\mathrm{45}=−\mathrm{72} \\ $$$$\mathrm{42}{x}=−\mathrm{72}+\mathrm{45} \\ $$$$\mathrm{42}{x}=−\mathrm{27} \\ $$$${x}=\:−\frac{\mathrm{27}}{\mathrm{42}}=−\frac{\mathrm{9}}{\mathrm{14}} \\ $$