54,024 views
0 votes
0 votes
3.14 = 7× - 2y slove for y

User Bohdan Ivanov
by
2.7k points

1 Answer

19 votes
19 votes

Answer:

y = -0.2243

OR

y =
(7x)/(2) - 1.57

Explanation:

Step 1 - simplify the equation:

7* -2y = -14y

3.14 = -14y

Step 2 - Divide both sides of the equation by -14:


(3.14)/(-14) = (-14y)/(-14)

-0.2243 = y

Or if the equation contains two variables (3.14 = 7x - 2y):

Step 1 - Add 2y to both sides of the equation

3.14 + 2y = 7x - 2y + 2y

3.14 + 2y = 7x

Step 2 - Subtract 3.14 from both sides of the equation:

3.14 + 2y - 3.14 = 7x - 3.14

2y = 7x - 3.14

Step 3 - Divide both sides of the equation by 2:


(2y)/(2) = (7x)/(2) - (3.14)/(2)

y = \frac{7x}{2} - 1.57

Hope this helps!

User Andrew Marshall
by
3.4k points