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3 years ago

Evaluate -3x-2(3-x)+14

Mathematics

2 answers:

Nookie1986 [14]3 years ago

4 0

Perform the indicated operations in the order specified by PEMDAS (Order of Operations rules):

-3x - 2(3) - 2(-x) + 14. Multiply first, in two places:

-3x - 6 + 2x + 14 Combine like terms:

8 - x Answer

GalinKa [24]3 years ago

3 0

-3x - 2(3 - x) + 14

Distribute -2 inside the parentheses (-2 * 3) and (-2 * -x).

-3x - 6 + 2x + 14

Combine like terms (-3x + 2x) and (-6 + 14).

$\boxed {-x + 8}$ is your answer.

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Please help me with this, thanks guys

tangare [24]

Answer:

1) 1 | 3, 5, 8

2| 2, 4, 6, 6

3| 4, 8, 9

4| 5, 5

5| 1, 5, 6

Step-by-step explanation:

You put the tens place in the "stem" section and the ones in the "leaf" section. For 3 digit number you but both the hundreds and tens in the stem spot. Ex) 23 | 1, 5, 8, 9

6 0

2 years ago

Read 2 more answers

Multi step equations

Tems11 [23]

Answer:

Step-by-step explanation:

1) -28r +14=-12r-2

-16r=-16

r=1

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2) -35x+5=6x-36

-41x=-41

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7 0

2 years ago

RT has the endpoints (0, 2) and (4, 2). What is its midpoint?

Nimfa-mama [501]

R=(0,2), T=(4,2)
vector:
v=(4-0,2-2)=(4,0)
v/2=(2,0)

(0,2)+v/2=(2,2)

so (2,2) is the midpoint

3 0

3 years ago

Read 2 more answers

A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co

White raven [17]

Answer:

The value of x would be $\frac{3}{5}y$ or $\frac{3}{8}z$

Step-by-step explanation:

Given,

x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain 5% gravel mixture,

Thus, gravel G in x ton + gravel in y ton = gravel G in the resultant mixture,

⇒ 0.1x + 0.02y = 0.05(x+y),

0.1x - 0.05x = 0.05y - 0.02y

0.05x = 0.03y

$\implies x = \frac{0.03}{0.05}y=\frac{3}{5}y----(1)$

Now, resultant mixture is z ton,

i.e. $z=x+y$

$\implies y = z - x$

From equation (1),

$x=\frac{3}{5}(z-x) = \frac{3}{5}z-\frac{3}{5}x$

$x+\frac{3}{5}x=\frac{3}{5}z$

$\frac{8}{5}x=\frac{3}{5}z$

$x=\frac{3}{8}z$

3 0

3 years ago

Which algebraic expression is equivalent to the expression below? [x +2 - (5x + 5)]2

kvv77 [185]

<span>[x + 2 - (5x + 5)] ² =
[x + 2 - 5x - 5]² =
[x - 5x + 2 - 5]² =
[-4x - 3]² =
(-4x)² - 2.(-4x).3 + (-3)² =
16x² + 24x + 9

Answer:
</span> $\boxed{C = 16x^2 + 24x + 9}$ <span>

</span>

6 0

2 years ago