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Novay_Z [31]
4 years ago
9

Solve for x: −2(x + 3) = −2(x + 1) − 4

Mathematics
1 answer:
sashaice [31]4 years ago
4 0
So here are the solutions to your given questions above:
For question 1:
Based on the given values, let us try to expand it.
And the result would be -2x-6 = -2x-6.
This makes the solution would be all real numbers. When we say the solution is all real numbers, i<span>solate the x term by subtracting x from both sides and you end up getting "2=2", which makes it a true statement, and therefore, the solution of the equation is all real numbers.
For question 2:
Since the equation is already given and x represents the number of people who joined the site that month, let us solve for x.
</span><span>x = 0.8x + 72
x - 0.8x = 72
0.2x = 72
x = 72/0.2 = 360
</span>The number of people who became a member of that month is 360 in total.
Since 80% of it are ages 30 to 40 years old, we are going to find 80% of 360 and that would be 288. So the answer is the second option.
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