3 years ago

The sides of a triangle measure 2x + 5, X – 4, and

Mathematics

2 answers:

slavikrds [6]3 years ago

8 0

Answer:

9x+4

Step-by-step explanation:

perimeter= sum of all sides

perimeter= (2x+5)+ (x-4)+ 3(2x+1)

= 2x+5+x-4+ 6x+3

= 2x+x+6x+5+3-4

= 9x+8-4

=9x+4

sp2606 [1]3 years ago

5 0

Answer x = 24 + 3x

Step-by-step explanation:

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3 years ago

Two opposite sides of the square are increased by 8 inches and the other two sides are decreased by 5 inches. the area of the ne

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Answer:

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Step-by-step explanation:

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3 years ago

-7(n - 2) + 2n = -5(n + 6)

skad [1K]

Given the expression below

$-7(n-2)+2n=-5(n+6)$

To find n

Open the brackets

$\begin{gathered} -7(n-2)+2n=-5(n+6) \\ -7n+14+2n=-5n-30 \\ -7n+2n+14=-5n-30 \\ -5n+14=-5n-30 \end{gathered}$

Collect like terms

$\begin{gathered} -5n+14=-5n-30 \\ -5n-(-5n)=-30-14 \\ 0\ne-44 \end{gathered}$

Since, the sides are not equal,

Hence, there is no solution

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1 year ago