-3x+7y=5 (x2) -> -6x+14y=10
-6x+14y=10
-8x+14y=-10
——————— -
2x=20
x=20/20
x=1
Susbstitute x=1,
-8x+14y=-10
-8(1)+14y=-10
-8+14y=-10
14y=-10+8
14y=-2
y=-2/14
y=-1/7
I hope it helps
Answer:
10 4 for question one
Step-by-step explanation:
I don't have one I just know how and I did this
Answer:
(x -6)²
Step-by-step explanation:
It is worth remembering the form of the square of a binomial:
(a +b)² = a² +2ab +b²
Note that if "a" and "b" have different signs, the middle term will be negative.
In your case, the square root of the constant is half the magnitude of the x-coefficient, so the trinomial you have is a perfect square. Since you just found √36 = 6, and the sign of 12 tells you the terms have different signs, you know the answer is ...
x² -12x +36 = (x -6)²
_____
Of course, you recognize (x +6)(x -6) as the factoring of the difference of squares ...
x² -6² = x² -36
which is not what you have.
Answer:
Is there an option for y= 3x - 13/2
It may be written in another way so please check.
Step-by-step explanation:
Y+1/2= 3(x-2)
Y+1/2= 3x-6
Y= 3x -6 -1/2
Y= 3x - 13/2
Please mark as brainliest if you’re satisfied.
Answer:
Use Pythagorean to solve these. Assume the missing side is x.
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