1/2x + 5 = x
in the back of our book we have the answers and it says 10 but i cant figure it out plz! help!
2007-10-31 06:34:31 · 6 answers · asked by ms-adidas 4 in Science & Mathematics ➔ Mathematics
Is it (1/2)x + 5 = x or 1/(2x) + 5 = x
You probably mean the first one since the second one will give you two solutions.
(1/2)x + 5 = x
5 = x - (1/2)x
5 = (1/2)x
5 * 2 = x
x = 10
2007-10-31 06:41:18 · answer #1 · answered by Danny N 2 · 0⤊ 0⤋
x/2 + 5 = x
5 = x/2 (x- 1/2x = 1/2x)
x = 10 (x by 2)
2007-10-31 06:43:03 · answer #2 · answered by norman 7 · 0⤊ 0⤋
isolate the x's on 1 side: 5 = x - 1/2 x , then symplify : 5 = 1/2x ,then multiply both sides by 2: 10 = x , or x = 10
2007-10-31 06:44:13 · answer #3 · answered by bsxfn 3 · 0⤊ 0⤋
1/2x + 5 = x
subtract 1/2x from both sides
5 = 1/2x
multiply both sides by 2
10 = x
2007-10-31 06:42:21 · answer #4 · answered by Matt 3 · 0⤊ 0⤋
1/2x+5=x;
times both sides by two: x+10=2x;
subtract x from both sides: 10=x.
Happy Hallowe'en.
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2007-10-31 06:42:50 · answer #5 · answered by Goethe's Ghostwriter 7 · 0⤊ 0⤋
1.subtract both sides by 1/2x
-1/2x+1/2x+5=x-1/2x
5=1/2x
2.multiply both sides by 2
5(2)=1/2x(2)
10=x
2007-10-31 06:42:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋