What is the value of x in the solution to the following system of equations?
x − y = −3
x + 3y = 5

2-3 6. use your equation to find how high tyler will have to climb to scale the peak. (4 points: 2 points for correctly substituting values, 2 points for the correct height)

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Find x to the nearest hundredth place