Question 148176
Since the two angles are supplementary, this means that the two angles add to 180 degrees. So this means that {{{(7x-13)+(5x-11)=180}}}



{{{7x-13+5x-11=180}}} Start with the given equation.



{{{12x-24=180}}} Combine like terms on the left side.



{{{12x=180+24}}} Add {{{24}}} to both sides.



{{{12x=204}}} Combine like terms on the right side.



{{{x=(204)/(12)}}} Divide both sides by {{{12}}} to isolate {{{x}}}.



{{{x=17}}} Reduce.



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Answer:


So the answer is {{{x=17}}}