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MrRissso [65]
3 years ago
8

2x-4/10 = 2x/20 Solve for x.

Mathematics
2 answers:
Anon25 [30]3 years ago
8 0
Solution

1) Simplify \frac{4}{10}<span> to </span>\frac{2}{5}
<span>2x− </span>\frac{2}{5} <span>=2 x </span>\frac{x}{20}

2) Simplify 2 x \frac{x}{20}<span> to </span>\frac{x}{10}
<span>2x−</span>\frac{2}{5} =  \frac{x}{10} 

3) <span>Multiply each side by 10 
</span><span><span>20x−4=x</span>
</span>
4) <span>Subtract <span>20x</span> from each side
</span><span>−4=x−20
</span>
5) <span>Simplify <span>x−20x</span> to <span>−19x </span>
</span><span><span>−4=−19x</span>
</span>
6) <span>Divide each side by <span>−19</span>
</span>\frac{-4}{-19} <span>=x
</span>
7) Simplify \frac{-4}{-19}<span> to </span>\frac{4}{19}
 \frac{4}{19}<span><span>=x</span><span>
</span></span>
8) <span>answer 
</span><span>x= </span>\frac{4}{19}
bixtya [17]3 years ago
5 0
Make 2x/20=x/10
2x-4/10=x/10
multiply both sides by 10
20x-4=x
subtract x from both sides
19x-4=0
add 4
19x=4
divide by 19
x=4/19
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