find value of a and b
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Answer:
the value of a=-97/35 and the value of b=72/7.
Step-by-step explanation:
we know that the angle of straight line is 180°.
-3a+56+5b+85=180.
-3a+5b+141=180.
5b-3b =180-141.
5b-3a=39. this is the first equation.
157-3b+5a+40=180.
5a-3b=180-197.
5a-3b=-17.
3b-5a=17. this is the second equation.
by the equating of equation first and second ,
we get the value of a and b.
the value of a is -97/35 and the value of b is 72/7.
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