Зx-8+4х5 in standard from

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

What is the total area of the figure?

Combine like terms to make a simpler expression 3z+z