Solve the equation for y. 4.2x-1.4y=2.1

asked Feb 14, 2019 137k views

0 votes

5.6k points

Please log in or register to add a comment.

2 votes

Subtract 2.1 from both sides:

4.2x-1.4y-2.1=0

Add 1.4y to both sides:

4.2x-2.1=1.4y

Of course, we can rewrite this as

1.4y=4.2x-2.1

Divide both sides by 1.4

y = (4.2)/(1.4)x - (2.1)/(1.4) = 3x - 1.5

5.1k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.9m questions

7.8m answers