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Cameron Friedman
Mathematics
1 January, 23:30
Justify each step. 2x-5=-20 2x=-15 X=-15/2
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Kiana Farley
1 January, 23:45
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This is a linear equation, and it is solved for finding the value of x.
2x - 5 = - 20
now simple number - 5 goes to the other side of equation and turns into + 5, then the equation becomes
2x = - 20 + 5
now we get 2x = - 15
because - 20 + 5 = - 15, greater number is 20 then 5 and 20 is with - sign.
the next step is x = - 15/2
in 2x, 2 is multiplying with x when it goes to the other side of equation 2 will be divided with - 15, that's why we get
x = - 15/2
which is the value of x
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