Someone please help me

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Find dy/dx using implicit differentiation ln(20+e^xy)=y