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Aloiza [94]
3 years ago
12

When Ms. Shreve solved an equation in class, she checked her solucion and found that it did not make the equation true! Examine

her work below and find her mistake.Then find the correct solution
5(2×-1)-3×=5×+9
10×-5-3×=5×+9
7×-5=5×+9
12×=4
×=1/3
Mathematics
1 answer:
prisoha [69]3 years ago
7 0
5(2x-1)-3x=5x+9
10x-5-3X=5X+9
10X-3X-5X=9+5
2X=14
x=7

she didn't move the ones with variables around<span />
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Alla [95]

Answer:

\displaystyle (-\infty,\frac{1}{7})

Step-by-step explanation:

<u>Inequalities</u>

To solve the inequality:

-w+9>6w+8

We need to perform the required operations on both sides of the inequality to have the variable w isolated.

First, we subtract 9:

-w+9>6w+8

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Operating:

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Now we divide by -7 but recall that when dividing by a negative number, we must flip the inequality sign:

\displaystyle w

Operating:

\displaystyle w

Solution:

\mathbf{\displaystyle (-\infty,\frac{1}{7})}

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