Asked by needy
given the systems 6x-y=7 and 2x+y=5 to solve the system by substitution do I replace the y-variable in the second inequality with 7-6x? true or false if false why?
Answers
Answered by
R_scott
true
but the most direct method is to add the equations (y will be eliminated)
... 8x = 12
find x , then substitute back to find y
but the most direct method is to add the equations (y will be eliminated)
... 8x = 12
find x , then substitute back to find y
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