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1 year ago

10x-5 9x+2 is my equation and I don’t know how to solve it I really need help,someone please help me solve it.

Mathematics

1 answer:

Ostrovityanka [42]1 year ago

8 0

9514 1404 393

Answer:

x = 7

Step-by-step explanation:

You solve a linear equation by putting the variable on one side of the equal sign and a constant on the other side. Here, variables and constants are on both sides of the equal sign, so you need to separate them.

The basic idea is that you add the opposite of any term you don't want. Whenever you perform any operation (like "add"), you must do it to both sides of the equation.

We observe that x-terms have coefficients of 10 and 9. We choose to add the opposite of 9x to both sides:

10 -9x -5 = 9x -9x +2

x -5 = 2 . . . . simplify

Now, we still have -5 on the left, where we don't want it. So, we add its opposite (+5) to both sides:

x -5 +5 = 2 +5

x = 7 . . . . simplify

The solution is x = 7.

_____

Additional comment

If we were to end up with an x-coefficient other than 1, we would divide both sides of the equation by that coefficient. This will leave the x-term with a coefficient of 1.

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Allushta [10]

Answer and Step-by-step explanation:

First, we need to find out the circumference of the circle.

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2 $\pi$ r

Plug in 1 for r.

$2\pi (1)$ = $2\pi$ = circumference of circle

Now, multiply the answer (the circumference) by 4 to get the perimeter of the square.

$2\pi$ x 4 = $8\pi$ = perimeter of square

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$8\pi$ ÷ 4 = $2\pi$

Now, multiply $2\pi$ by $2\pi$ (side times side) to get the area.

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#teamtrees #PAW (Plant And Water)

I hope this helps!

Brainliest is appreciated,

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2 years ago

Can synthetic division always be used instead of polynomial long division?

Inessa05 [86]

Yes, there is an expanded algorithm for synthetic division involving nonlinear and non-monic divisors (check out the w.i.k.i.pedia page on "synthetic division", under the "Expanded sythetic division" section).

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2 years ago

Read 2 more answers

Which algebraic expression represents “Marcus practiced the trumpet twice as long this week”?

Maksim231197 [3]

Answer:

Step-by-step explanation:

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2 years ago

14.2 is 35.5% of what number W

bonufazy [111]

14.2/x=100/35.5
5.041=x
Final
35.5% of 14.2=5.041

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2 years ago

Which of the following rotational symmetry is applied to the regular not

olya-2409 [2.1K]

9514 1404 393

Answer:

Step-by-step explanation:

A regular nonagon has vertices that are 360°/9 = 40° apart. Any rotation by a multiple of 40° will make the figure indistinguishable from the original.

Rotational symmetry of 40° applies.

Rotational symmetry of 200° applies.

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2 years ago