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vivado [14]
3 years ago
9

Solve for 3t-t-6=t-7

Mathematics
2 answers:
Ulleksa [173]3 years ago
5 0

Answer:

Step-by-step explanation:

Replace all occurrences of  

+

−

with a single  

−

. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because  

1

⋅

−

1

=

−

1

3

−

t

−

6

=

t

−

7

Subtract  

6

from  

3

.

−

t

−

3

=

t

−

7

Move all terms containing  

t

to the left side of the equation.

Tap for more steps...

−

2

t

−

3

=

−

7

Move all terms not containing  

t

to the right side of the equation.

Tap for more steps...

−

2

t

=

−

4

Divide each term by  

−

2

and simplify.

Tap for more steps...

t

=

2

stealth61 [152]3 years ago
3 0

Answer:

t = - 1/3

Step-by-step explanation:

3t - t - 6 = t - 7

3t - t + t = 6 - 7

3t = - 1

t = - 1/3

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Answer:

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Step-by-step explanation:

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For Peter the formula is 1 (lawn mowed) = 1/6 lawn per minute x 6 minutes.

For the son the formula is 1 = 1/8 * 8.

Add their rates together, 1/8 + 1/6 = 3/24 + 4/24 = 7/24.

The equation for their rate working together is 1 = 7/24 * t

Divide both sides by 7/24 to find t. t = 1 / 7/24 = 1 * 24/7 = 24/7 = 3 and 3/7 minutes = approx. 3 minutes 26 seconds.

4 0
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Answer:

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Step-by-step explanation:

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7 0
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ipn [44]
Answer:
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Step-by-step explanation:
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7 0
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Neporo4naja [7]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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