Solve the system of linear equations by substitution.

-2x-5y=3

3x+8y=-6

3/7 x 28/9 x 15/17 ... how do I use cancellation? my answer was 15/17 but thats not the right answer, can someone explain this and cancelling factors to me?

Where does the graph of the linear equation, y = x - 3, cross the y-axis

What is the slope intercept form of rhe linear equation 2x + 3y = 6

A cookie recipe for 60 cookies calls 4 cups of flour. How much flour is needed to make 90 cookies?

1400 dollars is placed in an account with an annual interest rate of 7.25%. To the nearest tenth of a year, how long will it take for the account value to reach 4600 dollars?

If you place 100000 in a savings account with an interest rate of 5.25% a month how much should you earn interest at the end of the month

40,583 in word form

1 Mike's parents recently built a rectangular swimming pool that measures 7 meters long, 4 meters pool is 89% full, how much more water is needed to finish filling the swimming pool? A. 9.24 cubic meters B. 24.92 cubic meters C. 74.76 cubic meters D.

Show how to solve the problem mentally.

Would f (-7) if f (x) = 8x + 15 does that equal - 804?