Answer:
9
Step-by-step explanation:
substituting 2 for the x
y = 2(2) + 5
y = 4 + 5
y = 9
Answer:
1 hold
2 hold
3 does not hold
4 hold
5 hold
6 hold
7 does not hold
8 does not hold
9 Does not hold
10 Hold
Step-by-step explanation:
The detailed step by step verification is as shown in the attachment
X^2 + y^2 = 8
X-y=0 so x = y
replace x = y into X^2 + y^2 = 8
y^2 + y^2 = 8
2y^2 = 8
y^2 = 8/2
y^2 = 4
y = - 2 and y = 2
because x = y
so x = - 2 and x = 2
solutions:
x= - 2 and x = + 2
y= - 2 and y = + 2
Firstly, multiply both sides by 2: 
Next, divide both sides by h: 
Next, subtract both sides by b1, and <u>your answer will be
</u>