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Citrus2011 [14]
3 years ago
6

HELP PLEASE Simplify.

Mathematics
1 answer:
maksim [4K]3 years ago
7 0
Simplifying
2x + -3(3 * 0.6x + 2.7)

Multiply 3 * 0.6
2x + -3(1.8x + 2.7)

Reorder the terms:
2x + -3(2.7 + 1.8x)
2x + (2.7 * -3 + 1.8x * -3)
2x + (-8.1 + -5.4x)

Reorder the terms:
-8.1 + 2x + -5.4x

Combine like terms: 2x + -5.4x = -3.4x
-8.1 + -3.4x
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Solve the system of equations. 5x−4y=−10 -4x + 5y = 8
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What is the equation of the line that passes through point (4,12) and has a y intercept of -2
gregori [183]

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Step-by-step explanation:

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2 years ago
Using Cramer’s Rule, what is the value of x in the system of linear equations below?
cluponka [151]

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x = 8 is the answer

Step-by-step explanation:

In order to find  the solution of Equations using Cramer's rule

we shall find  matrices

D= \left[\begin{array}{ccc}5&-3\\1&-2\end{array}\right]=

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l D l  = Determinant formed by coefficient  of variables

Here l D l = 5X(-2) - 1X(-3)=  -10+3 = -7

l D1 l =   Determinant formed by replacing first column In D by numbers on the right side of the equations

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here x is  given by \frac{l D1 l}{l D l}

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3 years ago
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4 years ago
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