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2 votes
2/5(x-2)=4x solve for x

User Raghupathy
by
6.5k points

2 Answers

1 vote
Hmm, seems like they tried to get sneaky with the variable placement.

The first thing you need to to is distribute 2/5 through the parenthesis. This gives you the equation:

2/5x-4/5=4x

Now, get x on one side of the equation:

-4/5=3 3/5x (note the mixed number)

x=-2/9 (negative because we're dividing a positive and negative number)
User Eugine Joseph
by
6.9k points
3 votes

Answer:


-(2)/(9)

Explanation:

Our equation is


(2)/(5)(x-2)=4x

Multiplying both sides by 5 we get


2(x-2)=5*4x\\2x-4=20x

bringing 2x to other side of = sign


-4=20x-2x\\18x=-4

dividing both sides by 18


x=(-4)/(18)\\x=-(2)/(9)

User Dusm
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6.7k points