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Vikentia [17]
2 years ago
6

All of the following operations are used to solve for X in the equation below except one. Which one is it ? 9x-2=4x+8 A. Additio

n B. Division C. Multiplication D. Subtraction
Mathematics
1 answer:
gtnhenbr [62]2 years ago
5 0

Step-by-step explanation:

9x - 2 = 4x + 8 → (9-4)x = 8 + 2 → 5x = 10 → x = 10/2 = 5

C. multiplication

Multiplication not used

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Read 2 more answers
line j is perpendicular to lines m and n. if the products of the slope of all three lines is -8, what is the slope of line j?
jeka94

Answer:

the slope of line j is -1/8, the slope of lines m and n are both 8.

Explanation step by step:

Suppose j is the slope of line j, m the slope of line m and n the slope of line n. Since:

1. line j is perpendicular of line m, so j*m= -1

2. J is perpendicular of line n, so  j*n=-1

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As we want to know the slope of j we clear the equations presented to us in order to find it.

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we clear j; n^{2} * j = -8 \\ j =\frac{-8}{n^{2} }

replacing in the equation n*j = -1 we get

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3 years ago
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