Answer:
875 + 61/2= 1811/2
1/2x + 31/2y= y + 31x/2xy
91/5x +91/5= 91 + 91x/5
Step-by-step explanation:
I did not understood the question but I hope thet was the Answer
5000+0=5000 that is g
and then 0+100=100-20=80 that is h
the value of (5x+70) is
the value of (7x+50*