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Mathematics 15 Online
OpenStudy (anonymous):

Solving Systems of Equations by Substitution (work out please) x+3y=40 2x+3y=53

OpenStudy (anonymous):

@blurbendy

OpenStudy (blurbendy):

same idea, solve for the easy one first x = -3y + 40 2(-3y + 40) + 3y = 53 Distribute the 2, then solve for y

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