Write as a single power of 10. 10 8 ÷ 10 9

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41