Question

What is the value of x? 4/5x-1/10=3/10
A 1/4
B 8/25
C 2/5
D 1/2
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Answer 1

1/2

Explanation:

4/5x - 1/10 = 3/10

add 1/10 to each side to get 4/5x = 4/10

change 4/5x to 8/10x

cross-multiply to get 80x = 40

Answer 2

D, ½.

Explanation:

Start by dividing both members of the equation by 10. You will get 8x - 1 = 3. Move 1 to the other side and change its sign (8x = 3 + 1). Sum 3 + 1 (8x = 4). Divide both 8x and 4 by 8 and you will get (8/8)x = 4/8: 8 divided by 8 equals 1, so x = ½.