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agasfer [191]
4 years ago
14

Can someone help please i don't understand ​

Mathematics
1 answer:
mel-nik [20]4 years ago
3 0

Answer:

x= -3/11

Step-by-step explanation:

Use cross multiplication:

5(x+1)= -1(6x-2)

Simplify:

5x+5= -6x+2

Subtract 5 from both sides:

5x= -6x-3

Add 6x to both sides:

11x= -3

Divide both sides by 11:

x= -3/11

Hope this helps ^-^

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Step-by-step explanation:

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2)\\2(3x-5a)+9(2a-7b)+3(5a-2x)=0\\\\\text{use the distributive property}\ a(b+c)=ab+ac\\\\(2)(3x)+(2)(-5a)+(9)(2a)+(9)(-7b)+(3)(5a)+(3)(-2x)=0\\\\6x-10a+18a-63b+15a-6x=0\qquad\text{combine like terms}\\\\(6x-6x)+(-10a+18a+15a)-63b=0\\\\23a-63b=0\qquad\text{add}\ 63b\ \text{to both sides}\\\\23a=63b\qquad\text{divide both sides by 23}\\\\a=\dfrac{63b}{23}\\\\if\ a=\dfrac{63b}{23}\ then\ x\ is\ any\ real \ number\\\\if\ a\neq\dfrac{63b}{23}\ then\ x\ not\ exist\ (no\ solution)

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Step-by-step explanation:

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