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omeli [17]
3 years ago
15

-5x is - 40 + 3x Find x

Mathematics
1 answer:
irina [24]3 years ago
8 0

Answer: x = 5

Step-by-step explanation:

1. Set the two given expressions equal to each other (because the problem says they are interchangeable)

-5x = -40+3x

2. Subtract 3x from -5x to have x on one side of the equation.

-8x = -40

3. Divide each side by -8 to get the value of x.

x = 5

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I need help to the attachment down below, first answer gets 5 stars and a thanks!
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Answer:

base = 15 units

Step-by-step explanation:

We are given area of a triangle = 52.5 sq. units

Height is given as 7 and we have to find the base.

Using formula for area of triangle:

Area of triangle = \frac{base*height}{2}

52.5 = \frac{base*height}{2}

52.5 = \frac{base*7}{2}

52.5 * 2 = base × 7

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base = 15

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3 years ago
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Answer:

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