Mathematics: Write two equations that can be used to solve the equation. |6 + 7a| = 22

Write two equations that can be used to solve the

Ответ:

torresalysabeth

16.03.2022

6 + 7a = 22
-6 -7a = 22

Since the equation has an absolute value in it, the numbers underneath the radical can be positive or negative. That means the two equations that can be used to solve it are

6 + 7a = 22
And
-(6+7a) = 22
= -6 -7a = 22

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Ответ:

Abdul111

16.03.2022

Mathematics

6 + 7a = 22 or 6 + 7a = -22

Step-by-step explanation:

$|x|=a\iff x=a\ or\ x=-a,\ \text{for}\ a\geq0\\\\======================\\\\|6+7a|=22\iff6+7a=22\ or\ 6+7a=-22$

Solution:

$6+7a=22\ or\ 6+7a=-22\qquad\text{subtract 6 from both sides}\\\\7a=16\ or\ 7a=-28\qquad\text{divide both sides by 7}\\\\a=\dfrac{16}{7}\ or\ a=-4$

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Ответ:

8545548

07.12.2020

Mathematics

To get the answer, you will just use this operation: Division.
Let's divide it. 81 ÷ 13.5 = 6.

So, the answer is
Ben earns $6 per hour at the fun station.

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Write two equations that can be used to solve the equation.
|6 + 7a| = 22

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