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3 years ago

2. 3х - бу = 18 4. How do you solve for y

Mathematics

2 answers:

Degger [83]3 years ago

7 0

Answer:

$y = \frac{18 - 3x}{ - 6}$

Step-by-step explanation:

Given,

$3x - 6y = 18$

$- 6y = 18 - 3x$

$y = \frac{18 - 3x}{ - 6}$

This how we can solve for y.

Firdavs [7]3 years ago

3 0

that equation has to be wrong because it gives me a decimal

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Identify the quotient in the form a + bi. HELP ASAP PLEASE!!

Step2247 [10]

Solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Step-by-step explanation:

We need to solve the expression: $\frac{4-5i}{2+3i}$

Multiplying and dividing by 2-3i

$=\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}\\=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,know\,\, i^2=-1\\=\frac{8-12i-10i+15(-1)}{4-9(-1)}\\=\frac{8-15-12i-10i}{4+9}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}$

So, solving the expression $\frac{4-5i}{2+3i}$ we get $-\frac{7}{13}-\frac{22i}{13}$

So, Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

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3 years ago

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lakkis [162]

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Answer:

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3 years ago

Can somebody help me?

Degger [83]

A percentage
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MAXImum [283]

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