X=1

9x - 2y = - 5 solve with substitution

y = 7

Step-by-step explanation:

9x - 2y = - 5

Put x = 1 in for x.

9 (1) - 2y = - 5

Multiply 9*1, which equals 9.

9 - 2y = - 5

Subtract 9 on both sides.

-2y = - 5 - 9

Combine - 5 and - 9, which equals - 14.

-2y = - 14

Divide by - 2 on both sides.

This means ...

y = 7.

y = 7

Step-by-step explanation:

1) Substitute X with 1

9 (1) - 2y = - 5

2) Simplify 19*1 to 9

9 - 2y = - 5

3) Subtract 9 from both sides

-2y = - 5 - 9

4) Simplify - 5-9 to - 14

-2y = - 14

5) Divide both sides by - 2.

y = - 14 / - 2

6) Two negatives make a positive.

y = 14 / 2

7) Simplify 14 / 2 to 7

y = 7