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DENIUS [597]
4 years ago
12

What’s -2f-3=7 I cant figure it out

Mathematics
2 answers:
iVinArrow [24]4 years ago
8 0

Answer:

12

Step-by-step explanation:

-2f-3=7

+2f-3=7+2

f-3=9

f+3=9+3

f=12

i think

vampirchik [111]4 years ago
3 0

Answer:

f=-5 heres a tip use m a t h w a y it'll save your life with math homework

Step-by-step explanation:

-2f-3=7 is a two step equation

add 3 to both sides giving you -2f=10

then divide each side by -2 to get the f alone

f=-5 and theres your answer

I hope this helps you :)

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Solve the system using substitution.<br> 2x = 5y + 14<br> x = 5y
andrew-mc [135]

Answer:

<h2>y = 2.8</h2><h2>x = 14</h2>

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.

7 0
3 years ago
A taxi service charges a flat fee of $4.20 per ride plus an additional $0.80 per mile.if a taxi ride costs $6.60, how many miles
Setler [38]
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7 0
3 years ago
What is an interval scale and what is it used for?
koban [17]
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8 0
3 years ago
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jekas [21]
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Hoped I helped!

5 0
3 years ago
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qwelly [4]
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8 0
3 years ago
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