How do I solve 15+12=_+7

Given the system of equations, what is the x-coordinate of the solution? (matrix) y = 3 - 1/2 x 3x + 4y = 1 22 -17/2 -11

which are the numbers that are common multiples of 6 and 8. 12 18 24 30 40 48

What is 27.5/100 simplified

My teacher gave me a sheet of this and no instructions: 1. 5x+2y=10 -5x+7y=8 I don't know what I am suppose to do.

An amateur basketball game was scheduled to last 60 minutes including time between quarters several 99 second timeout used throughout by the two teams extended the total game time to 72 minutes. How many total timeouts were used during this game?

Which equation is 69 is greater than x

If x = 7, y = 1 and 2 = 1, then evaluate the following expression: X - y + z =

Solve 0.06*0.7+0.03=0.06 * (-0.2) + 0.03

What fraction of 1 pint is 1 cup

Solve m² + 8m = - 3 by completing the square. (Use a comma to separate multiple values.) What the answer for this?