Question

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if x = -2 &y= -1 is a solution of the equation mx+2y=15 . find the value of m .​

Answer 1

mx+2y = 15

=) -2m-2 = 15

=) -2m = 15+2

=) -2m = 17

=) -m = 17/2

=) m = -17/2 = -8½

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Answer 2

Answer:

8.5

Step-by-step explanation:

mx+2y=15

=m(-2)+2(-1)=15

= -2m+(-2)=15

= -2m-2=15

= -2m=15+2

=m=17/2

=m=8.5