Step-by-step explanation:
(-)(-) = +



Answer:
x = 3
Step-by-step explanation:
To find the x-coordinate, substitute y = 8 into the equation abd solve for x
5x - 7 = 8 ( add 7 to both sides )
5x = 15 ( divide both sides by 5 )
x = 3
Thus (3, 7) is a solution to the equation
The result is x^2 +x +4 -21/(x+3).
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Polynomial long division tends to be easier than numerical long division because the quotient term never needs adjustment. It is always the ratio of the highest degree terms of the dividend and divisor.
See the attachment for the intermediate steps.
11/3 – 11/5 + 7/10 = 13/6 or 2 1/6
:)
Answer:
b = -5
Step-by-step explanation:
So we know
3<em>a</em> = -9
Divide 3 on both sides
<em>a</em> = -3
Plug <em>a</em> in to the other equation
-3b = 15
divide -3 on both sides
b = -5