Answer:
Step-by-step explanation:
5x-2y=24
x+2y=12
add the two equations
(5x-2y)+(x+2y)=24+12
6x=36
x=6
Plug in x=6 into any of the two equations
5(6)-2y=24
30-2y=24
-6= -2y
y= 3
x=6
y=3
(6,3)
Answer:
15m +31
Step-by-step explanation:
5(3m+7) - 4 = 15m + 35 - 4 = 15m +31
We have that
x²<span>+2x=17
</span><span>Group
terms that contain the same variable
</span>(x²+2x)=17
<span>Complete
the square. Remember to balance the equation
</span>(x²+2x+1)=17+1
Rewrite as perfect squares
(x+1)²=18
x+1=(+/-)√18
x=(+/-)√18-1
x1=√18-1----> 3.24
x2=-√18-1----> -5.24
the answer is
the option
<span>
4.) 3.24, –5.24</span>
Step-by-step explanation:
B is the correct answer because x is 2 and if 2 is a then both x and a equal 2
