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zheka24 [161]
3 years ago
14

What value of X makes equation below true 2x + 9 = 4x - 1

Mathematics
2 answers:
ale4655 [162]3 years ago
7 0

Answer:

5

Step-by-step explanation:

Rashid [163]3 years ago
3 0

Answer:

5 IS THE RIGHT VALUE THAT MAKES THE GIVEN EQUATION TRUE...

Step-by-step explanation:

2x+9=4x-1

9+1=4x-2x

10=2x

10/2=x

5=X

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Step-by-step explanation:

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2 years ago
Jim has only dimes and nickels in his coin bank. He has 37 coins with a total value of $2.65.
guajiro [1.7K]

Answer:

21

Step-by-step explanation:

Let x represent the number of dimes and y represent the number of nickels.  The total number of coins is 37; this gives us the equation

x+y = 37

Each dime is worth ten cents, or 0.10, and each nickel is worth five cents, or 0.05.  The total amount of money is given by

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This gives us the system

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To solve this, we will use substitution.  We will isolate x in the first equation:

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Using the distributive property,

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Combining like terms,

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Subtract 3.70 from each side,

3.70-0.05y-3.70 = 2.65-3.70

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Divide both sides by -0.05:

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4 0
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Step-by-step explanation:

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rodikova [14]

Try this explanation:

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answer: x-intercept is '0', y-intercept is '12'

3 0
3 years ago
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