-5x + y = -5.....multiply by -2
-4x + 2y = 2
---------------
10x - 2y = 10 (result of multiplying by -2)
-4x + 2y = 2
-----------------add
6x = 12
x = 12/6
x = 2
-5x + y = -5
-5(2) + y = -5
-10 + y = -5
y = -5 + 10
y = 5
solution is (2,5)
1. You con solve the quadratic equation x^2+20x+100=50<span> by following the proccedure below:
2. Pass the number 50 from the right member to the left member. Then you obtain:
x^2+20x+100-50=0
</span><span> x^2+20x+50=0
</span><span>
3. Then, you must apply the quadratic equation, which is:
x=(-b±√(b^2-4ac))/2a
</span><span>x^2+20x+50=0
</span><span>
a=1
b=20
c=50
4. Therefore, when you substitute the values into the quadratic equation and simplify ir, you obtain that the result is:
-10</span>±5√2 (It is the last option).
Answer:
-2
Step-by-step explanation:
range is y values
Its 234!!!!!!!!!!!!!! Just checked my work
Answer:
3y(4y-1)-2y(6y-5)=9y-8(3+y)
12y∧2-3y-12y∧2+10y=9y-24-8y
12y∧2-12y∧2-3y+10y=9y-8y-24
7y=y-24
7y-y=-24
6y=-24
y=-24/6=-4
Step-by-step explanation:
