Solve the equation 7-y-y=-1

Question

Ayden

Mathematics

6 March, 01:46

Solve the equation 7-y-y=-1

+2

Answers (2)

Know the Answer?

Harris · Answer 1

7-2y = - 1

-2y = 1 - 7

-2y = 8

Y = 4

Tomas Montgomery · Answer 2

Answer: y=4

Step-by-step explanation:

7-y-y=-1

Combine like terms

7-2y=-1

Subtract seven on both sides of the equation

7-7-2y=-1-7

-2y=-8

Divide both sides by - 2

-2y/-2=-8/-2

y=4

Check the answer by plugging 4 back in the equation for y.

7-4-4=3-4=-1

The final answer is y=4