Applications for systems of equations a test worth 100 points and having 28 problems is broken down into 3-point problems and 4-point problems. how many of each type of problem will be on the test?

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

c. side angle side. u shares the same sides