What is the value of x in the equation x – y = 30, when y = 15?

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21-07-2016
Mathematics

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What is the value of x in the equation x – y = 30, when y = 15?

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world2explore world2explore · Answer 1 · 2016-07-21T19:04:25+02:00

world2explore world2explore

21-07-2016

To find " X", you'll need subsitute "y" with 15 and solve the equation.

So, it would look like this:

x - y = 30
x - 15 = 30 (subsitute)
x - 15 + 15 = 30 + 15 (add on both sides of the = sign)
x = 45 (final solution)

Hope this helps!
:)

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antonio9990 antonio9990 · Answer 2 · 2016-07-21T19:44:55+02:00

antonio9990 antonio9990

21-07-2016

[tex]x-y=30 \ when \ y=15 \\ \\ x-15=30 \\ \\ x=30+15 \\ \\ x=45[/tex]

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