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const2013 [10]
2 years ago
7

If 3 – 5x = 2, then x =

Mathematics
2 answers:
Fofino [41]2 years ago
8 0

3-5x=2

or, -5x=-1

or, x= 1/5

mixas84 [53]2 years ago
7 0

Answer:

x=.2

Step-by-step explanation:

3-5x=2

add 5x to both sides

-5x+5x=0

2+5x=2+5x

3=2+5x

subtract 2 from both sides

1=5x

divide each side by 5

.2=x

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quester [9]

Answer:

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Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

7 0
3 years ago
an 8 in. by 10 in. photo is reduced so that the width (the shorter dimension) is 3 in. what is the length of the reduced photo
Sindrei [870]

Answer:


Step-by-step explanation:

The length can be found by setting up a proportion.  If the width is reduced by some ratio, then the length will share the same ratio.

3 / 8 =  x / 10                    Multiply both sides by 10.

3 * 10 / 8 = x                     Multiply first

30/8 = x                            Divide next. You don't need to do it in this order.

3 6/8                                 Simplify

3 3/4                                 Give another choice

3.75                                

The length = 3.75 inches

If none of these are correct, please leave a note with your choices.

6 0
3 years ago
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Vera_Pavlovna [14]
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Answer:

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Step-by-step explanation:

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