3 years ago

Solve this equation with substitution method :- x+5 = 3 (y+5) x-5 = 7 (y-5)

1 answer:

5 0

From the first equation,
x+5 = 3(y+5)
x = 3y + 15 - 5
Now substitue x in the second equation with (3y +15 - 5).
x-5 = 7(y-5)
(3y+15-5) - 5 = 7(y-5)
3y +5 = 7y - 35
-4y = - 40
y = 10

Since y is 10, and x is (3y +15 - 5),
x = 30 + 15 - 5 = 40

You might be interested in

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!

Airida [17]

D is the correct answer I think.

8 0

3 years ago

Read 2 more answers

Frieda has 12 red apples and 15 green apples. She is going to share the apples equally among 8 people and keep any extra apples

icang [17]

Answer:

Step-by-step explanation:

She has 12+15=27 apples

We divide 27 by 8 people

27:8=3

-24

___

(3)

We have reminder 3 so, she have 3 apples for herself.

5 0

3 years ago

Shana is at the grocery store comparing two brands of juice. Brand A costs $3.84 for a 16-ounce bottle. Brand B costs $4.50 for

DaniilM [7]

I hope this helps, it is correct.

5 0

3 years ago

Please answer all three questions asap

Whitepunk [10]

Answer:

70.0373

70.04

70.0373

Step-by-step explanation:

7 0

2 years ago

Which row of the input/output table is incorrect?

zaharov [31]

Row A: x = 3

y = 2x - 3

y = 2(3) - 3 = 3 This is correct

Row B: x = 5

y = 2x - 3

y = 2(5) - 3 = 7 This is correct

Row C: x = 7

y = 2x - 3

y = 2(7) - 3 = 11 this is correct

Row D: x = 10

y = 2x - 3

y = 2(10) - 3 = 17 THIS IS INCORRECT, SO ROW D

8 0

3 years ago