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2 years ago

Solve: 9 + 2 - 10x = 1 - 10x

Mathematics

2 answers:

Evgen [1.6K]2 years ago

5 0

The awnser is a no solution

nevsk [136]2 years ago

3 0

Answer:

0 = -10

Step-by-step explanation:

add 9+2=11

11-10=1-10x rearange terms

-10x+11=1-10x subtract 11 from both sides

−10+11−11=−10+1−1

-10x=-10x-10 add 10 to both sides

−10+10=−10−10+10 simplify cause you subtracts 10 from each side and your left with

0=-10

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If 2x + 5 = 8x, then 12x = ?A.5B.10C.15D.20

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<h2>Answer:</h2> $10.\text{ Option B is correct}$

<h2>Explanation:</h2>

Given the equation expressed as:

$2x+5=8x$

First, we need to calculate the value of "x" from the given expression.

Step 1: Given the equation 2x + 5 = 8x

Step 2: Subtract 5 from both sides:

$\begin{gathered} 2x+5-5=8x-5 \\ 2x+\cancel{5}-\cancel{5}=8x-5 \\ 2x=8x-5 \end{gathered}$

Step 3: Subtract 8x from both sides

$\begin{gathered} 2x-8x=8x-8x-5 \\ -6x=\cancel{8x}-\cancel{8x}-5 \\ -6x=-5 \end{gathered}$

Step 4: Divide both sides by -6

$\begin{gathered} \frac{-6x}{-6}=\frac{-5}{-6} \\ x=\frac{5}{6} \end{gathered}$

Step 5: Get the value of 12x. Substitute x = 5/6 into the expression to have:

$\begin{gathered} 12x=12(\frac{5}{6}) \\ 12x=\cancel{12}^2(\frac{5}{\cancel{6}^1}) \\ 12x=2\times5 \\ 12x=10 \end{gathered}$

Therefore the value of 12x is 10

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