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horsena [70]
3 years ago
11

Twice the diffrence of a number and 9 is equal to three times the sum of the number and 5. Find the number

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0
2(n-9) = 3(n + 5)
2n - 18 = 3n + 15
2n - 3n = 15 + 18
-n = 33
n = -33
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<h3>Midpoint of coordinate points</h3>

The midpoint of a line is the point that bisects or divides the line into two equal parts

If the line JK is partitioned into the ratio 1:4 with the following coordinates

J(-15, -5) and K(25, 15)

Using the expression below;

M(x, y) =[mx1+nx2/m+n, my1+ny2/m+n]

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Learn more on midpoint of a line here: brainly.com/question/5566419

#SPJ1

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