<img src="https://tex.z-dn.net/?f=2m%20%2B%207%20%3D%209" id="TexFormula1" title="2m + 7 = 9" alt="2m + 7 = 9" align="absmiddle"

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NNADVOKAT [17]

3 years ago

class="latex-formula">

Mathematics

2 answers:

shtirl [24]3 years ago

8 0

9-7 is equal to 2
2/2 is equal to 1
1=m

Alex787 [66]3 years ago

3 0

When you are solving for m you want to seclude m on one side,

So start by subtracting 7 on both sides because you want to use inverse operations so since it’s positive use negative

2m = 2

Now since you use inverse operations you want the m by itself to since 2m is bound through multiplication use division so divide 2 on both sides and you’re left with

m = 1

You can check by filling m back into the equation

2(1) + 7 = 9

2 + 7 = 9

9 = 9

So it’s true

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3 years ago

Which values of x make the equation |x - 7| = x - 7 true? 9 0 3 8 -7

Vlad [161]

-7
I might not be right but that’s what I got.

3 0

3 years ago

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mote1985 [20]

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5 0

2 years ago

Write an equation that is perpendicular to and 3x+y=3 whose y-intercept 5. Anyone please help me, no link just explain how to do

Liula [17]

Answer:

$y = \frac{1}{3}x + 5$

Step-by-step explanation:

By definition, two lines are perpendicular if and only if their slopes are negative reciprocals of each other: $m = - \frac{1}{m_{2} }$ , or equivalently, $m_{1} * m_{2} = -1$ .

Given our linear equation 3x + y = 3 (or y = -3x + 3):

We can find the equation of the line (with a y-intercept of 5) that is perpendicular to y = -3x + 3 by determining the negative reciprocal of its slope, -3, which is $\frac{1}{3}$ .