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3 years ago

You bought a magazine for $3 and some

Mathematics

2 answers:

Lunna [17]3 years ago

8 0

Hello There!

A magazine costs $3 and some candy bars. Let’s represent the number of candy bars as “X”

19-3=16 so that’s how much money is spent on candy bars.

If $16 is spent on candy bars then 8 candy bars were bought.

vlada-n [284]3 years ago

5 0

Answer:

8 candy bars

Step-by-step explanation:

Transform the question to an equation:

3 + 2x = 19

Solve:

2x = 16

x = 8

Check the answer:

3 + 2 (8) = 19

3 + 16 = 19

True

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EastWind [94]

Answer:

Step-by-step explanation:

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2 years ago

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What is the answer<br>2x+3x-7=42

Studentka2010 [4]

Answer:

x = $\frac{49}{5}$ or $9.8$

Step-by-step explanation:

First, combine like terms. Like terms are terms with the same amount of the same variable.

(2x + 3x) - 7 = 42

5x - 7 = 42

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& roots)

Multiplications

Divisions

Additions

Subtractions

First, add 7 to both sides of the equation:

5x - 7 (+ 7) = 42 (+ 7)

5x = 42 + 7

5x = 49

Next, divide 5 from both sides of the equation:

(5x)/5 = (49)/5

x = 49/5

x = 9.8

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1 year ago

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daser333 [38]

Answer:

See below

Step-by-step explanation:

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