Solve for the first variable in one of the equations, then substitute the result into the other equation.
(-2,-6)
Answer:
(4,-9)
Step-by-step explanation:
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Answer:
Step-by-step explanation:
hello : the system is : y =-5x+8...(*)
y =11/7x-4/7 ...(**)
by (*) and (**) : 11/7x-4/7 = -5x+8
multiply by 7 : 11x-4 = -35x+56
11x+35x = 56+4
46x = 60
x = 60/46 = 30/23
continu.....put the value for x in (*) or (**)
Let
x------> number of emails originally sent
we know that
so
Solve for x
Divide by both sides
therefore
<u>the answer is</u>