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3 years ago

What is the value of x in the equation below? 4(x + 3) = 9x + 16 + 3x

Mathematics

1 answer:

creativ13 [48]3 years ago

3 0

Answer:

x = -1/2

Step-by-step explanation:

4(x + 3) = 9x + 16 + 3x

Distribute the 4

4x +12 = 9x+16+3x

Combine like terms

4x+12 = 12x+16

Subtract 4x

4x-4x+12 = 12x-4x+16

12 = 8x+16

Subtract 16

12-16 = 8x+16-16

-4 =8x

Divide by 8

-4/8 =8x/8

-1/2 =x

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Elenna [48]

Answer:

The expression for rate per hour is $\frac{340}{45}\times 60$ .

Explanation:

Given:

A machine paints 340 toy boats in 45 minutes.

To Find:

Expression equals the rate per hour?

Solution:

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3 years ago

Solve the equation by factoring.<br> c2 - 2c + 1 = 0

nikitadnepr [17]

Answer:

The only solution is c=1

Step-by-step explanation:

c^2 - 2c + 1 = 0

What 2 numbers multiply to 1 and add to -2

-1 * -1 =1

-1 + -1 =-2

( c-1) (c-1)=0

Using the zero product property

c-1 =0 c-1 =0

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The only solution is c=1

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