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2 years ago

Solve the following -5x + 3 = 2x - 1

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

5 0

x=4/7

Step-by-step explanation:

get x alone.

1st get 3 on the other side of the = sign by using the opposite sign. the opposite of addition is subtraction

-5x+3=2x-1

-3 -3

-5x=2x-1-3

-5x=2x-4

now we get the xs together. the opposite of addition( the 2 is positive) is subtraction

-5x=2x-4

-2x -2x

-7x=-4

now let's get the -7 out of here. -7 is multiplying by x. the opposite of multiplication is division.

-7x = -4

-7. -7

x=-4/-7

negative divided by a negative is a positive

x=4/7

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3 years ago

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3 years ago

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2 years ago

A) 3/4 × 1/2 b) 4/7 × 21/40

Dmitry_Shevchenko [17]

A) 2/3....

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3 years ago

Click the score on the graph where you think the balancing point would be for this data.

Ulleksa [173]

Answer:

The balancing point is 23

Step-by-step explanation:

Given

The above graph

Required

Determine the balancing point

This simply means that we calculate the mean.

From the above graph, we have:

$\begin{array}{cc}x & {f} & {21} & {3} & {22} & {5} & {28} & {1} & {29} & {1}\ \end{array}$

So, the mean is:

$\bar x = \frac{\sum fx}{\sum f}$

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$\bar x = 23$

Hence, the balancing point is 23

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3 years ago