<img src="https://tex.z-dn.net/?f=32.5%20%3D%2030%20%2B%20%20%5Cfrac%7B20%20-%20%2840%20%2B%20x%29%7D%7B12%7D%20%20%5Ctimes%2010

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3 years ago

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" id="TexFormula1" title="32.5 = 30 + \frac{20 - (40 + x)}{12} \times 10" alt="32.5 = 30 + \frac{20 - (40 + x)}{12} \times 10" align="absmiddle" class="latex-formula">
please i need a step by step solution...I'll mark brainliest

1 answer:

erastova [34]3 years ago

7 0

Answer:

$x = - 23$

Step-by-step explanation:

$\frac{20 - (40 + x)}{12} \times 10 = 32.5 - 30 = 2.5$

$= > \frac{20 - (40 + x)}{12} = 0.25$

$= > \frac{20 - (40 + x)}{12} = \frac{1}{4}$

$= > 20 - (40 + x) = \frac{12}{4} = 3$

$= > 40 + x = 20 - 3 = 17$

$= > x = 17 - 40 = - 23$

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