SOLUTION: solve using the addition method,answer must be an ordered pair.
-2x=2y+5
6x+3y=3
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Question 147165: solve using the addition method,answer must be an ordered pair.
-2x=2y+5
6x+3y=3
Answer by mangopeeler07(462) (Show Source): You can put this solution on YOUR website!
Choose a variable to solve for first. How about y? Line up the two equations and multiply by three. Then manipulate the second equation into by subtracting 3y from both sides. Once this is done, you should have and . Add them together and get . Subtract 18 from both sides and get . Divide both sides by three and get y=-6. Then plug y back into the original equation and solve for x. after plugging in y, and get . Divide each side by -2 and get . You wanna check? Plug x and y into . Get . It's true! So y=-6 and x=7/2.
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