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2 years ago

What is the solution to the following equation? 7x - 20 = -41 - a). X=-3 b). X=3

Mathematics

1 answer:

taurus [48]2 years ago

8 0

Answer:

A). X = -3

Step-by-step explanation:

Step 1: Add 20 to both sides.

$7x-20+20=-41+20$
$7x=-21$

Step 2: Divide both sides by 7.

$7x/7 = -21/7\\$
$x=-3$

Step 3: Check if solution is correct.

$7(-3)-20=-41$
$-21-20=-41$
$-41=-41$

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Sal wrote the statement below to represent the inequality 8 n minus 5 less-than 25. Which words should Sal use to complete the v

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Answer:

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Step-by-step explanation:

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Which expressionis equal to (-7x+5.1y)-(-9x+5.3y)

Furkat [3]

Answer:

The simplified expression for the given expression will be:

c. $2x-0.2y$

Step-by-step explanation:

Given expression:

$(-7x+5.1y)-(-9x+5.3y)$

To simplify the expression.

Solution:

In order to simplify the expression, we will first remove the parenthesis by reversing the signs of the terms inside the parenthesis which lies after a negative sign out side the parenthesis.

This is because negative multiplies to a negative to give a positive and negative multiplies to a positive to give a negative.

So, we have:

⇒ $-7x+5.1y+9x-5.3y$