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OpenStudy (anonymous):
I give medals 2x + y = 3 x - 2y = -1 If equation one is multiplied by 2 and then the equations are added, the result is _____. 3x = 2 3x = 5 5x = 5
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OpenStudy (anonymous):
Just use system of equations elimination or substituion
OpenStudy (math&ing001):
2 * [(2x + y) = 3] So that gives you : 4x +2y = 6 + x - 2y = -1 Do the math
OpenStudy (anonymous):
um so the answer is b right? or am i wrong
OpenStudy (math&ing001):
Nope it's C. 4x+x=5x
OpenStudy (anonymous):
damn. okay thanks
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