Solving equations for variables

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Presentation transcript:

Solving equations for variables

Solving Multi-step Equations Distributive Property Combine Like Terms Move variable on right to left Undo Add/Subt Check Answer Undo Multi/Div

Example V=IR Solve for R P = 2(L + W) Solve for P y = 5x – 10 Solve for x

You try 1 P=IRT Solve for T y = mx + b Solve for b 2x - 3y = 9 Solve for y

Example x+y 3 =5 Solve for x. V= 1 3 Bh Solve for h. A= a+b+c 5 Solve for c.

You try 2 m= 2E v 2 Solve for E. v=π r 2 h Solve for h. −10=xy+z Solve for x.

Example Leslie is driving her old Volkswagen Bug to college and she wants to get there in 3 hours to meet her roommate. If her college is 200 miles from home how fast (r) will she have to drive? The formula for distance is d=rt.

NO TALKING!!!! (unless you are talking to me)  Scavenger hunt You can start at any of the 11 problems around the classroom. Be sure to write and SOLVE each problem on a sheet of paper. (This is what I’ll check) Once you solve each problem, find your answer on one of the problems around the room. If you can’t find your answer, then your answer is wrong and you need to do the problem again. Must complete ALL 11 problems This is great practice so please don’t cheat. If you need help, raise your hand so I can help you. NO TALKING!!!! (unless you are talking to me) 