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3 years ago

What is the solution to x-1=-2x+5

Mathematics

2 answers:

Ivan3 years ago

5 0

Answer:

x = 2

Step-by-step explanation:

Solve for x

x - 1 = -2x + 5

3x = 6

x = 2

Paraphin [41]3 years ago

5 0

Answer: 3

Step-by-step explanation:

1×-2=-2

-2+5=3

-2×1+5=3

I hope this helps, have a good day or night:)

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Step-by-step explanation:

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Add $\frac{2}{9}$ to both sides to get rid of the constant on the LHS

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This simplifies to

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Noting that (a + b)² = a² + 2ab + b²

If we set a = x and b = $\frac{1}{6}\right)$ we can see that

$\left(x - \frac{1}{6}\right)^2$ = $x^2 - 2.x. (-\frac{1}{6}) + \frac{1}{36} = x^{2} - \frac{x}{3}+\frac{1}{36}$

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Taking square roots on both sides

$\left(x - \frac{1}{6}\right)^2= \pm\frac{1}{4}$

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So the two roots are

$x_1=\frac{1}{6} - \frac{1}{2} = -\frac{1}{3}$

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