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Yakvenalex [24]
3 years ago
5

What is the first step in silving this equation? 3n - 4 = -2 + 2n

Mathematics
2 answers:
Pie3 years ago
6 0

Answer:

3n - 4 =  - 2 + 2n \\  or \: 3n - 2n =  - 2 + 4 \\ or \: n \: =  + 2 \\ or \: n = 2 \\ therefore \: n = 2

<h3>The Answer of this question is 2.</h3>

Thank you ☺️ ☺️

Cloud [144]3 years ago
4 0

Steps:

3n - 4 = -2 + 2n

-2n              -2n

n - 4 = -2

   +4    +4

n = 2

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12. In PQR if mP is 14 less than five times x, mQ is five less than x, and mR is nine less
mash [69]

Answer:

Step-by-step explanation:

mP=5x-14

mQ=x-5

mR=2x-9

we know that all the angles in a triangle= 180

that means (5x-14)+(x-5)+(2x-9)=180

5x-14+x-5+2x-9=180  we add the variables and the numbers

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6 0
2 years ago
5. Solve v = w - 20 for w.​
slava [35]

v = w - 20

move -20 to the other side

sign changes from -20 to +20

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Answer:

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5 0
3 years ago
Read 2 more answers
Factor completly 4x^2 +8x -5
DaniilM [7]

∑ Hey, jillianwagler ⊃

Answer:

\left(2x-1\right)\left(2x+5\right)

Step-by-step explanation:

<u><em>║Given info║:</em></u>

<em>Factor completely: </em>4x^2 +8x -5

<u><em>Solution~:</em></u>

<em>Breaking the expression~:  </em>\left(4x^2-2x\right)+\left(10x-5\right)

<em>Factor out 2x from 4x² -2x : 2x(2x-1)</em>

<em>Factor out 5 from 10x - 5 : 5(2x - 1)</em>

<em>Put together: </em>=2x\left(2x-1\right)+5\left(2x-1\right)

Factor out 2x - 1: =\left(2x-1\right)\left(2x+5\right)

<u><em>xcookiex12</em></u>

<em>8/19/2022</em>

4 0
1 year ago
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goldfiish [28.3K]

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3 years ago
Choose the equations in which d = 1000 will make the equation true
Brilliant_brown [7]

Answer:

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Step-by-step explanation:

...

5 0
2 years ago
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