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hjlf
3 years ago
11

Show me how to do the equation 42=32-6f-4f​

Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0

Answer:

Step-by-step explanation:

42 = 32 - 6f - 4f

42 = 32 - 10f

10 = -10f

-1 = f

f = -1

ahrayia [7]3 years ago
5 0

Answer: -1

Step-by-step explanation:

42=32-6f-4f

First you switch places, to turn -6f-4f into +6f+4f, to make it more simpler.

-32+6f+4f = -42

Then we group them, if it has the same letter they go together, and if they don't have anything they are grouped together.

-32+6f+4f = -42

-32+10f = -42

We then need -32 to switch places so it could get grouped with the -42, but when it is switched, the minus (-) turns into plus (+).

-32+10f = -42

+10f = -42 + 32

Then we group them by working out the addition.

Now to work this out first you need to find the biggest number, which is 42 (for about the minus and plus for now) and then we:

42-32= 10

We decide if the number has a minus or a plus by looking at the farthest number from 0 looking at this part -42+32, in this -42 is the farthest from 0, since it has a minus then the 10 must have a minus:

-42+32= -10

So now we have:

10f= -10

Now to find f we must remove 10 from the 10f, we can do this by placing the 10 on the other side, but the 10 remains positive (+), but when it switches from times (×) it switches to division (÷) since between the 10f there is a times:

10f = -10

f = -10÷10

f = -1

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Gavin likes biking. He never misses a chance to go for a ride when the weather is nice. This week his goal is to bike about 65 t
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Answer:

Total Miles he  drives first day      = 8 miles

Total Miles he drive second day   = 12miles

Total Miles he drives third day    =    18miles

Total Miles he drives fourth day    =  27 miles

Step-by-step explanation:

This is a problem of linear equations in 1 variable:

The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.

It is given in the question that ,

This week his goal is to drive bike about 65 total miles over four days. Each day, he wants to ride 1.5 times as far as he rode the day before.

Let, on the first day, he drives x miles. On second day, he drives 1.5x. On the third day, he drives 1.5(1.5x) and on the fourth day, he drives 1.5(1.5(1.5x)).

So the equation is :

x +1.5x + 1.5(1.5x) + 1.5(1.5(1.5x)) = 65miles

x + 1.5x + 2.25x + 3.375x   = 65miles

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                  x   =  65/8.125  miles

                  x   = 8 miles

so after solving the equation we get, on the first day Gavin drives 8 miles

similarly, on the second day he drives 12miles

               on third day 18 miles

   and     on the fourth day  27miles

more about linear equations in one variable at:

brainly.com/question/17139602

#SPJ10

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