4 years ago

Are the equations 3x = -9 and 4x = -12 equivalent? Explain

Mathematics

1 answer:

denis23 [38]4 years ago

3 0

$4(3x) = 4( - 9) \\ 12x = - 36$
$3(4x) = 3( - 12) \\ 12x = - 36$
So the equations are equal

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1/2 x 1350 x 144 = 97200 J where did they get the 144 from?

kati45 [8]

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2 years ago

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How many soultions does 5(x-3)+6=5x-9

olya-2409 [2.1K]

5(x - 3) + 6 = 5x - 9 has no solution

<em><u>Solution:</u></em>

We have to find the number of solutions for the given equation

Given equation is:

5(x - 3) + 6 = 5x - 9

Multiply the terms inside with bracket with constant outside the bracket

5x - 15 + 6 = 5x - 9

Add the constants in left hand side of equation

5x - 9 = 5x - 9

If the coefficients are the same on both sides, then the sides will not equal, therefore no solutions will occur.

Here, 5x - 9 = 5x - 9

The coefficients are same in both sides of equation

Therefore, the equation has no solution

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3 years ago

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JulijaS [17]

Answer:

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3 years ago

What is one half of a number is equal to 14. What is the number?

Brums [2.3K]

Let the number be x
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4 years ago

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