Question 1070835
angle A is seven times as large as angle B:   {{{A=7B}}}
Angle C is 30 degrees more than angle A:  {{{C=A+30}}}
FACT About interior angles of a triangle:   {{{A+B+C=180}}}, measures in degrees
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System of equations for the problem description:
{{{system(A=7B,C=A+30,A+B+C=180)}}}




Question asks for the value of angle A.


First two equations can be expressed as formulas in terms of A.
{{{A+A/7+(A+30)=180}}}
SOLVE THIS for A <s>first</s>.