Answer:
Step-by-step explanation:
2x - y = 5 <em>subtract 2x from both sides</em>
2x - 2x - y = -2x + 5
-y = -2x + 5 <em>change the signs</em>
y = 2x - 5
−15+5h
This = 64^( -1/2 * -2/3)
= 64 ^ 1/3
= cube root of 64
= 4 answer
B. √21
x^2 = √5 x √5 + 4 x 4
x^2 = 5 + 16
x^2 = 21
x = √21
<em>Hope that helps! :)</em>
<em></em>
<em>-Aphrodite</em>
