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3 years ago

5x-7=2x+8 solve for x

Mathematics

2 answers:

Lunna [17]3 years ago

4 0

5x-7=2x+8
5x-2x=8+7
3x=15
x=5

Rzqust [24]3 years ago

3 0

Answer:

x=5

Step-by-step explanation:

Simplifying 5x + -7 = 2x + 8 Reorder the terms: -7 + 5x = 2x + 8 Reorder the terms: -7 + 5x = 8 + 2x Solving -7 + 5x = 8 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -7 + 5x + -2x = 8 + 2x + -2x Combine like terms: 5x + -2x = 3x -7 + 3x = 8 + 2x + -2x Combine like terms: 2x + -2x = 0 -7 + 3x = 8 + 0 -7 + 3x = 8 Add '7' to each side of the equation. -7 + 7 + 3x = 8 + 7 Combine like terms: -7 + 7 = 0 0 + 3x = 8 + 7 3x = 8 + 7 Combine like terms: 8 + 7 = 15 3x = 15 Divide each side by '3'. x = 5 Simplifying x = 5

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Step-by-step explanation:

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3 years ago

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2 triangles are shown. The first triangle has side lengths 35, 20, and 20. The second triangle has side lengths x, 44, 44.

Ad libitum [116K]

The value of x is 77 cm which will make the triangles similar by SSS similarity theorem

Given length of the three sides of one triangle are 35 , 20 and 20

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As both the triangles are isosceles triangles

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Learn more about similarity of triangles here brainly.com/question/14285697

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2 years ago

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melisa1 [442]

Answer:

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Step-by-step explanation:

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3 years ago

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Rather than try to select the correct answer without doing work, I'd rather do the work first and the matching later.

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