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OpenStudy (anonymous):
Solve the linear system by using substitution or elimination. 3x + 2y = 4 -6x - 4y = -8
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OpenStudy (solomonzelman):
Multiply the 1st equation by 2 and add, tell me what you get...
OpenStudy (solomonzelman):
3x + 2y = 4 ---> times 2 ----> 6x+4y=8 -6x - 4y = -8 6x+4y=8 and -6x - 4y = -8 you can see that the second equation is the ' first times -1 ' there could be therefore, infinite number of solutions.
OpenStudy (solomonzelman):
when you add them you just get 0=0
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