alg I review guide for test 9/19

For the test on Friday, be prepared to:


solve a multi-step equation:   3x+5-x = 25
solve an equation with variables on both sides:  3x - 8 = 7x + 16
solve and graph the same problems as above but as an inequality
isolate a variable in a 2 variable equation or formula
solve an absolute value equation:  /x+7/ - 4 = 25

Word problems:
be able to set up a proportion in a problem that compares two things - one big, one small
be able to set up an equation with variables on both sides when the problem is talking about the better of 2 options.
be able to set up an inequality when finding the better of 2 options.
be able to use the triangle sum theorem to set up a multi step equation and solve to find x.


Reminders:  remind yourself how to convert a percent into a decimal!