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tigry1 [53]
3 years ago
7

Solve each equation for given variable -5i -15 = 15

Mathematics
2 answers:
fredd [130]3 years ago
8 0
First you regroup the terms .
-15 - 15i = 15
Since -15i - 5i = 15 is false , there is no solution
Illusion [34]3 years ago
5 0

Answer:

i= -6

Step-by-step explanation:

-5i-15=15

if we use inverse operation here, it would be -5i=30, so i= -6

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Substitution method<br>4x + y = 14<br>6x - 3y = 3​
lakkis [162]

Answer:

  • x = 2.5
  • y = 4

Step-by-step explanation:

<u>We know that:</u>

  • 4x + y = 14
  • 6x - 3y = 3

<u>Let's first solve for y by choosing any equation.</u>

  • 4x + y = 14
  • => y = 14 - 4x

<u>Now, let's substitute the value of y into the second equation.</u>

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<u>Now, let's substitute the value of x into the equation of y.</u>

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  • => 14 - 10 = y
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Hence, the value of x and y are 2.5 and 4 respectively.

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Step-by-step explanation:

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