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3 years ago

Lindsey made an error while solving this equation. 143.5 = 2 - (7(x+3). What line has the error?

Mathematics

1 answer:

Lunna [17]3 years ago

7 0

Answer:

Step 1

Step-by-step explanation:

She didn't distribute the negative while she distributed 7. It should be -7x - 21, not 7x - 21.

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2x-4<br> 30<br> 15x - 30<br> PAP

Alex787 [66]

Answer:

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Step-by-step explanation:

Given expression,

$\frac{\frac{2x-4}{30} }{\frac{15x-30}{18} }$

=> $\frac{\frac{2(x-2)}{30} }{\frac{15(x-2)}{18} }$

We see that $(x-2)$ is common in both numerator and denominator

hence canceling out we get:-

$\frac{2*18}{30*15}=\frac{2}{25}$

Answer= $\frac{2}{25}$

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