Answer:
x = - 16
Step-by-step explanation:
Given
x + 7 = - 9 ( subtract 7 from both sides )
x = - 16
By rearranging x = 7y - 5 to make y the subject, we get
x + 5 = 7y ( By transposition method )
or, 
<h2>Answer:</h2>

X^2 = 50
Square both sides
x= √50
x= (√25)(√2)
x = 5√2
Final answer: x = 5√2 and since x is to the power of 2 you can have x = + or - <span>x = 5√2</span>
Answer: 25%
Step-by-step explanation: