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aleksley [76]
3 years ago
12

What is the value of x in the equation 3x − 31 = 76

Mathematics
1 answer:
Maru [420]3 years ago
3 0
Add 31 to both sides.

<span><span><span><span>3x</span>−31</span>+31</span>=<span>76+31

</span></span><span><span>3x</span>=107
</span>
Divide both sides by 3.

<span><span><span>‌<span><span><span>3x/</span>3</span></span></span>‌</span>=<span><span>‌<span>107/3
</span></span>‌</span></span><span>x=<span>‌</span></span>\frac{107}{3}
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Hey!

So the first thing we realize is that it says that the equation is perpendicular to the line, meaning that the slope of the line is the negative reciprocal of the slope of the line you are given. Since we are given the slope of this line as 3/4 we can take the negative reciprocal of this to get -(4/3).

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