Question

4.2x-1.4y= 2.1 what is Y plz i need help and i don't understand

Answer 1

Answer: y = -1.4(2.1 - 4.2x)

Explanation:

4.2x - 1.4y = 2.1

Firstly you should move 4.2x over (by subtraction) so the new equation is:

-1.4y = 2.1 - 4.2x

Then you want to multiply everything by -1.4 to take it away from the y side. This will bring you to:

y = -1.4(2.1 - 4.2x)

This can be simplified down to

y = -2.94 + 5.88x

or

5.88x -2.94 = y

Answer 2

y = -1.5 + 3x

Step-by-step explanation

I'm sorry but I have no time, can someone comment me and explain? Thank you :)