solve using the multiplication -1/2x=-9/10?

2008-06-07 3:09 pm

回答 (7)

2008-06-07 3:14 pm
✔ 最佳答案
is it -(1/2) x or -1/2x

if it is -1/2x

-1/2x=-9/10
-5 = -9x
x= 5/9


if it is (-1/2)x

(-1/2)x=-9/10
-5x = -9
x = 9/5

hope this helps!!!
2008-06-07 6:19 pm
1/2x= 9/10.
x= 5/9.
2008-06-07 3:46 pm
(-1/2)(x) = -9/10
-x/2 = -9/10
x = -2(-9/10)
x = 18/10
x = 9/5 (1.8)
2008-06-07 3:43 pm
-1/2x = -9/10 (Cross-multiply)
-10 = -18x
x = 5/9
2008-06-07 3:17 pm
Negative 1/2(X) equals negative 9/10.

So 1/2(X) equals 9/10.

So X equals 18/10.

Reduce 18/10 and it's 9/5, or 1 and 4/5.
2008-06-07 3:15 pm
If you mean what is x,

-1/2x=-9/10.......... Cross-multiply by the denominators

-10 = -18x

x = 5/9
2008-06-07 3:14 pm
-1/2x=-9/10

multiplying -2 on both sides
=> x = 9/5
=> x = 1.8


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