2 years ago

Simplify -12x + 5x. -17 x -7 -7 x

Mathematics

2 answers:

Blababa [14]2 years ago

8 0

Answer:

-7x

Step-by-step explanation:

==> -12x + 5x.

==> -12+5xx

==> -7x

rjkz [21]2 years ago

8 0

Answer:

-7x

Step-by-step explanation:

−12x+5x

Combine Like Terms:

=−12x+5x

=(−12x+5x)

=−7x

Combining like terms - Combining like terms will simplify a math problem and is also the proper form for writing a polynomial. To combine like terms, just add the coefficients of each like term.

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A rectangle has a length of (x + 4) centimeters and a width of 12x centimeters. If the perimeter is 26 centimeters, what is the

mars1129 [50]

Width of rectangle is 8.4 cm

Step-by-step explanation:

Length of rectangle = x+4

Width of rectangle = 12x

Perimeter = 26 cm

We need to find width of rectangle.

The formula used is:

$Perimeter=2(length+width)$

Putting values and finding x first:

$Perimeter=2(length+width)$

$26=2(x+4+12x)$

$26=2(13x+4)$

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$x=\frac{18}{26}$

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Keywords: Perimeter of Rectangle

Learn more about perimeter of rectangle at:

#learnwithBrainly

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