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1 year ago

Triple the difference of 29 and 19

Mathematics

1 answer:

natta225 [31]1 year ago

7 0

Answer:

Step-by-step explanation:

29 - 19 = 10 (difference)

triple 10 now:

10 x 3 = 30

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2 years ago

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What does 170/100 equal in decimals?

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3 years ago

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2 years ago

Simplify this expression: (-2 - 8x) + (-4x - 10)

nevsk [136]

Answer:

The simplified form of expression (-2 - 8x) + (-4x - 10) is

-12(x + 1)

Step-by-step explanation:

It is given an expression (-2 - 8x) + (-4x - 10)

To find the simplified expression of (-2 - 8x) + (-4x - 10)

Let expression is given by

(-2 - 8x) + (-4x - 10) = -2 - 8x -4x -10

= -2 -10 -4x -8x

= -12 -12x

-12(x + 1) (since -12 is common in both terms)

Therefore simplified form is -12(x + 1)

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2 years ago

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In order to solve the following system of equations by addition, which of the

Pavlova-9 [17]

Answer:

Multiply the top equation by -3 and the bottom equation by 2

Step-by-step explanation:

Given system of equations:

$\begin{cases}4x-2y=7\\3x-3y=15 \end{cases}$

To solve the given system of equations by addition, make one of the variables in both equations sum to zero. To do this, the chosen variable must have the same coefficient, but it should be negative in one equation and positive in the other, so that when the two equations are added together, the variable is eliminated.

To eliminate the variable y:

Multiply the top equation by -3 to make the coefficient of the y variable 6:

$\implies -3(4x-2y=7) \implies -12x+6y=-21$