Which of these best explains the next step to simplify this expression? 3y−45=35y−4 Question 22 options: Make the –4 exponent in

Question

3 years ago

13

the denominator positive. Add 5 to –4. Keep the exponent in the denominator –4. Multiply 5 by –4.

1 answer:

NISA [10] · Answer 1 · 2022-12-25T14:53:59+03:00

NISA [10]3 years ago

3 0

The value of y from the give expression is 1

<h3>Expressions and equations</h3>

Give the following expression

$\frac{3y^{-4}}{5} = \frac{3}{5y^{-4}}$

Cross multiply the given expression

$3y^{-4}\times 5y^{-4}= 5 \times 3\\15y^{-8}=15\\$

Divide both sides by 15

$y^{-8}=1\\\frac{1}{y^8} =1\\y^8=1\\y=1$

Hence the value of y from the given expression is 1