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Oxana [17]
3 years ago
8

-2x=-14, what is the value of x?​

Mathematics
2 answers:
Tamiku [17]3 years ago
7 0

Answer: x=7

Step-by-step explanation:

Given the equation:

-2x=-14

You need to solve for "x" in order to find its value.

To solve for "x"  you can use the Division property of equality, which states the following:

If\ a=b\ then\ \frac{a}{c}=\frac{b}{c}

Therefore, you need to divide both sides of the equation by -2. Then, the value of "x" is:

\frac{-2x}{-2}=\frac{-14}{-2}\\\\x=7

eduard3 years ago
6 0

\huge{\boxed{7}}

To find the value of x, we need to isolate it. In this case, we can do so by dividing it by -2, and what we do to one side of the equation, we have to do to the other. So, divide both sides of the equation by -2. x=\boxed{7}

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mihalych1998 [28]

Answer:

ab - b^2

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3 0
3 years ago
What is the smallest 3-digit palindrome that is divisible by both 3 and 4?
kirill [66]

Answer:

252

Step-by-step explanation:

To be divisible by 3, it's digits have to add to a number that is a multiple of 3.

To be divisible by 4 its last 2 digits have to be divisible by 3.

So let's start with 1x1 which won't work because 1x1 is odd. so let's go to 2x2 and see what happens.

212 that's divisible by 4 but not 3

222 divisible by 3 but not 4

232 divisible by 4 but not 3

242 not divisible by either one.

252 I think this might be your answer

The digits add up to 9 which is a multiple of 3 and the last 2 digits are divisible by 4

4 0
2 years ago
Professor shepherd weighed two pieces of metal for an experiment. the piece of iron weighed 7/12 of a pound and the piece of alu
Ira Lisetskai [31]

Answer:

The iron weighed 1/12 pound more than the aluminum.

Step-by-step explanation:

The weight of the aluminum is given as 1/2 pound. But that can also be written as 6/12 pound.

This is a subtraction problem (subtracting fractions...so also a common denominator problem)

In order to subtract fractions you have to get a common denominator.

7/12 - 1/2

= 7/12 - 6/12

= 1/12

The iron is 1/12 pound heavier than the aluminum.

6 0
2 years ago
A recursive rule for an arithmetic sequence is a1=4;an=an−1−3 . What is the explicit rule for this sequence? Enter your answer i
Westkost [7]

Answer:

The explicit rule for the arithmetic sequence is given by:

a_n = a_1+(n-1)d       ......[1]

where,

a_1 is the first term

n is the number of terms and

d is the common difference for two consecutive terms.

As per the statement:

A recursive rule for an arithmetic sequence is:

a_1 = 4

a_n = a_{n-1}-3

The recursive formula for the arithmetic sequence is given by:

a_n = a_{n-1}+d

then;

On comparing we get;

d = -3

Substitute the given values in [1] we have;

a_n = 4+(n-1)(-3)

⇒a_n = 4 -3n+3 = 7-3n

Therefore, the explicit rule for this sequence is, a_n = 7 -3n

5 0
3 years ago
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