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DochEvi [55]
3 years ago
6

What is the value of n in the equation 1/2(n – 4) – 3 = 3 – (2n + 3)?

Mathematics
2 answers:
Travka [436]3 years ago
8 0
Distribute 1/2 to <span>(n – 4):

</span>\frac{1}{2} \times n = \frac{1}{2}n
\frac{1}{2} \times -4 = -2
<span>
Subtract (2n + 3):

</span>- (2n + 3) = -2n -3
<span>
Your equation should now look like this:

</span>\frac{1}{2}n - 2 - 3 = 3 - 2n - 3
<span>
Combine like terms on both sides:

</span>-2 - 3 = -5
3 - 3 = 0
\frac{1}{2}n - 5 = -2n
<span>
Subtract 1/2n from both sides:

</span>-5 = -\frac{5}{2}n
<span>
Divide both sides by -5/2 to get n by itself:

</span>n = 2
<span>
The value of n is 2.</span>
Jobisdone [24]3 years ago
6 0
\dfrac{1}{2}(n-4)-3=3-(2n+3)\\\\\\\dfrac{1}{2}(n-4)-3=3-2n-3\\\\\\\dfrac{1}{2}(n-4)-3=-2n\qquad|\cdot2\\\\\\n-4-6=-4n\\\\n-10=-4n\qquad|+10\\\\n-10+10=-4n+10\\\\n=-4n+10\qquad|+4n\\\\n+4n=-4n+4n+10\\\\5n=10\qquad|:5\\\\\boxed{n=2}
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