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4 years ago

What is equivalent to expression 2(7x + 3 - x) ? PLEASE DO STEP BY STEP

Mathematics

2 answers:

krek1111 [17]4 years ago

5 0

First you must multiply through 2 times everything in parenthesis

2*7x= 14x

2*3= 6

2* -x= -2x

put it together: 14x+6-2x combine the x's

12x+6 ( 14x-2x= 12x)

Zarrin [17]4 years ago

4 0

2(7x + 3 - x)
2(7x - x + 3)
2(6x + 3)
2(6x) + 2(3)
12x + 6

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Step-by-step explanation:

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3 years ago

Triangle ABC is similar to triangle FED, find the measure of x. A. X = 9 B. X = 11 C. X = 110 D. X = 231

just olya [345]

Answer:

$A+B+C=130$

$F+E+D=273$

Step-by-step explanation:

From the question we are told that:

Dimension of ABC

A=9

B=11

C=110

Dimension of FED

D=231

Generally the equation for the similar triangles is mathematically given by

$\frac{A}{F}=\frac{B}{E}=\frac{C}{D}$

Therefore solving for F

$\frac{9}{F}=\frac{110}{231}$

$F=\frac{9*231}{110}$

$F=18.9$

Therefore solving for E

$\frac{11}{E}=\frac{110}{231}$

$E=\frac{11*231}{110}$

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3 years ago

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nikdorinn [45]

Answer: 314 mm

Step-by-step explanation:

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3 years ago