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3 years ago

What is 3/x+6=x/9 ? add

Mathematics

1 answer:

Mkey [24]3 years ago

4 0

Let's solve your equation step-by-step.

3x+6=x9

Step 1: Cross-multiply.

3x+6=x9

(3)*(9)=x*(x+6)

27=x2+6x

Step 2: Subtract x^2+6x from both sides.

27−(x2+6x)=x2+6x−(x2+6x)

−x2−6x+27=0

Step 3: Factor left side of equation.

(−x+3)(x+9)=0

Step 4: Set factors equal to 0.

−x+3=0 or x+9=0

x=3 or x=−9

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we are given

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At x=5.01:

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At x=5.005:

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we can plug x=4.95

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we can plug x=4.99

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4 years ago

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(A) Is right

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$y = x + 3 \\ y = - x - 1 \\ substitute \: y = - x - 1 \: in \: above \: eq \\ weget \\ - x - 1 = x + 3 \\ 2x = - 4\\ x = - 2 \\ \\$

put X= -2. in y = X+3

to get y 's value

Y = -2+3

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