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3 years ago

11

How to find the value of x

+ x = x + x" alt="2x + x = x + x" align="absmiddle" class="latex-formula">

2 answers:

Serjik [45]3 years ago

8 0

Subtract x on each side. Please let me know if you need anymore help

stich3 [128]3 years ago

6 0

3x=2x
Minus 2x on both sides of the equation the final answer would be :
Value of x =0

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17/2 = 8.5 hours per week

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3 years ago

Sam evaluated the expression x2y for x = 7 and y = 9. He got a value of 49. which of the follwing statements is correct

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3 years ago

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2 years ago

Without using technology, describe the end

victus00 [196]

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Up on the left, up on the right

Step-by-step explanation:

The given function is:

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3 years ago

is (-1/2 x + 6/7) - (7/2 x - 4/7) equivalent to -4 x + 2/7 ? use the properties of operations to justify your answer

LuckyWell [14K]

Answer:

The given equation is NOT justified.

Step-by-step explanation:

Here, the given equation is $(\frac{-1}{2}x + \frac{6}{7} ) - (\frac{7}{2}x - \frac{4}{7} )$ = $-4x + \frac{2}{7}$

Now, here Consider the left hand side and simplifying the left side by operating on the like terms,

⇒ $(\frac{-1}{2}x + \frac{6}{7} ) - (\frac{7}{2}x - \frac{4}{7} )$ = $\frac{-1}{2}x + \frac{6}{7} - \frac{7}{2}x + \frac{4}{7} = (\frac{-1}{2}x -\frac{7}{2}x) + (\frac{6}{7} + \frac{4}{7})$

= $(\frac{-1 - 7}{2}x ) + (\frac{6 + 4}{7} ) = \frac{-8x}{2} + \frac{10}{7} \neq -4x + \frac{2}{7}$

Here, Left side of equation ≠ Right side of the equation

Hence, $(\frac{-1}{2}x + \frac{6}{7} ) - (\frac{7}{2}x - \frac{4}{7} )$ ≠ $-4x + \frac{2}{7}$

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3 years ago