Using the equation of the line
y -yo = m (x-xo)
We substitute xo,yo and the slope
y -5 = -8(x-1) .....> y = -8x +8 +5 = -8x +13
y = -8x +13
50-35.65
=15.35 Rs is the amount the boy got from the shopkeeper
What exactly are you asking? Can you maybe describe it more please?
(-7c + 4b) + 2b (-7c - 6b) = -1
