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3 years ago

11

To Solve each equation tell what you will do first to both sides 2x + 7 = 13

2 answers:

Digiron [165]3 years ago

6 0

Answer:

First subtract 7 from each side of the equation

Step-by-step explanation:

2x+7 = 13

First subtract 7 from each side of the equation

2x+7 -7 = 13-7

2x = 6

Next divide each side by 2

2x/2 = 6/2

x=3

ziro4ka [17]3 years ago

4 0

Answer:

X=3

The answer should have a positive sign.

Step-by-step explanation:

<em>First, you subtract by 7 both sides of equation.</em>

<em>2x+7-7=13-7</em>

<em>Simplify.</em>

<em>13-7=6</em>

<em>2x=6</em>

<em>Then, divide by 2 both sides of equation.</em>

<em>2x/2=6/2</em>

<em>Simplify, to find the answer.</em>

<em>6/2=3</em>

<em>X=3 is the correct answer.</em>

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Evaluate. –1.65 + (–3.4)

elena55 [62]

Hey there!

This seems like a algebraic expression

SO,
Remember: negative and negative = positive
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In this problem we will be doing negative and negative so that means our answer will be a negative

Firstly, lets line up our decimals to solve this problem (once when you do that , you can solve it easier)

$-1.65 
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3 years ago

I need to know how to solve the problem

LiRa [457]

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2 years ago

What is 600 minus 258?

lyudmila [28]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

Indicate in standard form the equation of the line passing through the given points, writing the answer in the equation

Kryger [21]

Answer:

$y + x - 6 = 0$

Step-by-step explanation:

Given

$M(0,6) \ and \ N(6,0)$

Required

Find the equation of the line

First, the slope of the line has to be calculated using the following formula;

$m = \frac{y_2 - y_1}{x_2 - x_1}$

$where\ (x_1,y_1) = (0,6) \ and \ (x_2,y_2) = (6,0)$

So, the equation becomes

$m = \frac{0 - 6}{6 - 0}$

$m = \frac{-6}{6}$

$m = -1$

The equation of the line can then be calculated using

$m = \frac{y - y_1}{x - x_1} \ or \ m = \frac{y - y_2}{x - x_2}$

$Using \ m = \frac{y - y_1}{x - x_1}$

$-1 = \frac{y - 6}{x -0}$

$-1 = \frac{y - 6}{x}$

Multiply both sides by x

$-1 * x = \frac{y - 6}{x} * x$

$-x = y - 6$

Add x to both sides

$x -x = y - 6 + x$

$0 = y - 6 + x$

Reorder

$y + x- 6 = 0$

$Using \ m = \frac{y - y_2}{x - x_2}$

$-1 = \frac{y - 0}{x - 6}$

$-1 = \frac{y}{x - 6}$

Multiply both sides by x - 6

$-1 * (x-6) = \frac{y}{x - 6} * (x-6)$

$-1 * (x-6) = y$

$-x+6 = y$

Add x - 6 to both sided

$x - 6 -x+6 = y +x - 6$

$0 = y + x - 6$

$y + x - 6 = 0$

Hence, the equation of the line is $y + x - 6 = 0$

3 0

3 years ago

Osh wanted to buy a new shirt for a school dance. At the store, he couldn't decide between a purple plaid shirt and a scarlet st

Zepler [3.9K]

Answer: $24.50

Step-by-step explanation:

Since the shirts were on sale for $19.95 each, both shirts would cost:

= $19.95 × 2

= $39.90

We are further told that he saved a total of $9.10. This means the original cost for both shirts would be:

= $39.90 + $9.10

= $49.00

Then, the original price for each one would be:

= $49.00 / 2

= $24.50

4 0

2 years ago