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Marianna [84]
3 years ago
9

Simplify (3x + 5) + (2x - 9) - (4x+3). A.) X-7 B.) -X-7 C.) 9x1 D) 9x1

Mathematics
2 answers:
erica [24]3 years ago
8 0

Answer:

x -7

Step-by-step explanation:

(3x + 5) + (2x - 9) - (4x+3)

3x + 5 + 2x - 9 -4x -3

x -7

lianna [129]3 years ago
3 0

(3x + 5) + (2x - 9) - (4x+3)

Pretend that there is a -1 in front of the third bracket

-1(4x+3)

= -4x-3

3x+5+2x-9-4x-3

3x+2x-4x+5-9-3 ( rearranging)

5x-4x-4-3

x-7

Answer: A.) X-7

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\bf (x-2)^{2\div 3}=49\implies (x-2)^{\frac{2}{3}}=7^2\implies \stackrel{\textit{raising both sides by }\frac{3}{2}}{\left( (x-2)^{\frac{2}{3}} \right)^{\frac{3}{2}}=(7^2)^{\frac{3}{2}}} \\\\\\ (x-2)^{\frac{2}{3}\cdot \frac{3}{2}}=7^3\implies (x-2)^1=7^3\implies x=7^3+2\implies x=345

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Step-by-step explanation:

Hello! To solve this exercise we must remember that the area of ​​any triangle is given by the following equation

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Now what we should do take the equation for the area of ​​a rectangle and leave the base alone, remember that what we do on one side of the equation we must do on the other side to preserve equality

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