17.1k views
0 votes
Given that

7
x

2
y
=
35

Find
y
when
x
=

9

User Laggel
by
8.2k points

2 Answers

4 votes

Answer:

y = - 49

Explanation:

Given

7x - 2y = 35 ← substitute x = - 9 into the equation

7(- 9) - 2y = 35, that is

- 63 - 2y = 35 ( add 63 to both sides )

- 2y = 98 ( divide both sides by - 2 )

y = - 49

User Jsau
by
8.1k points
2 votes

Answer:


\boxed{y = -49}

Explanation:

=>
7x-2y = 25

Given that x = -9

=>
7(-9)-2y = 35

=>
-63 -2y = 35

Adding 63 to both sides

=>
-2y = 35+63

=>
-2y = 98

Dividing both sides by -2

=>
y = 98/-2

=>
y = -49

User Andrew Zimmer
by
8.4k points

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