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OpenStudy (anonymous):
What should you multiply the first equation (top equation) by in order to eliminate the variable x when the two equations are added together. 2x -3y=10 6x +4y=8
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OpenStudy (rulnick):
-3
OpenStudy (rulnick):
... so that the new coefficient of x in the first equation is -6, the opposite of it's coeff in the second eqn.
OpenStudy (anonymous):
thanks
OpenStudy (rulnick):
welcome.
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