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velikii [3]
4 years ago
13

This is my questions may you help me

Mathematics
1 answer:
alexandr1967 [171]4 years ago
3 0
2(x+1)=9
Distribute and multiply 
2x+2=9
Subtract 2 from each side
2x=7
divide 2x/2 and 7/2
x=7/2 OR x=3 and 1/2
Is this what you are asking for?


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Answer:

\large \boxed{n = \dfrac{13}{3}; YZ = \dfrac{5}{3}}}

Step-by-step explanation:

I think you have the situation shown in the diagram below.

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\begin{array}{rcl}XY + YZ & = & XZ\\4n+ 3 + 2n - 7 & = & 22\\6n - 4 & = & 22\\6n & = & 26\\n & = & \dfrac{26}{6}\\\\& = & \mathbf{\dfrac{13}{3}}\\\end{array}\\\large \boxed{\mathbf{n = \dfrac{13}{3}}}

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