Question

Heya ~

Answer 1

Answer:

y = −3

Step-by-step explanation:

Subtract 7 from 4.

y = 4  - 7 = -3

Hopefully this helps you!

Answer 2

In this exercise we have to use subtraction knowledge to calculate the final value of the equation, like this:

Letter C

What is subtraction?

It is a mathematical operation in which it is possible to find a quantity by decreasing one number by another, it is opposed to addition, being represented by the minus sign.

So make the calculus we have:

$y=x-7\\x=4\\y=4-7\\y=-3$

See more about subtraction at brainly.com/question/4319655