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2 years ago

Show how to solve 2x+5=13, justify the steps

Mathematics

2 answers:

liberstina [14]2 years ago

8 0

Answer:

The answer is 4

Step-by-step explanation:

2x + 5 = 13

Now, Subtract 5 from both side we get,

2x + 5 - 5 = 13 - 5

2x = 8

Then, Divide both side by 2 we get,

2x/2 = 8/2

x = 4

Thus, The answer is 4

-TheUnknownScientist 72

vichka [17]2 years ago

8 0

Answer:

x = 4

Step-by-step explanation:

2x + 5 = 13

We must solve to find the value of 'x'. Take 5 to the right hand side to find x.

2x = 13 - 5

2x = 8

Take 2 in the '2x' to the right hand side to finally solve and find the value of x.

x = 8 ÷ 2

x = 4

[ Note: when you take a term to the other side of equation, the sign will be the opposite of what it was before. Fore example of 2x was positive on the left hand side of the equation, it will be negative on the right hand. Same goes with multiplications and divisions. If 2x was multiplied with another term on the left hand, it will divided when shifted to the right hand. ]

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Answer:

The answer to your question is speed = 81.5 mi/h

Step-by-step explanation:

Data

distance = 230 ft

time = 1.932 s

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Process

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1 mile ----------------- 5280 ft

x ----------------- 230 ft

x = (230 x 1) / 5280

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2.- Convert time to hours

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3 years ago

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