Question

0.2(×+50) -6=0.4(3×+20) need work

Answer 1

Hey there!

Given equation :

... 0.2 ( x + 50 ) - 6 = 0.4 ( 3x + 20 )

Using the distributive property.

... 0.2x + 10 - 6 = 1.2x + 8

... 0.2x + 4 = 1.2x + 8

Subtract 4 on both sides.

... 0.2x = 1.2x + 4

Subtract 1.2x on both sides.

... - x = 4

... x = -4

Hence, the answer is -4.

Hope it helps!!

Answer 2

How to solve this problem?

To solve this problem you would distribute the 0.2 and 0.4 inside of the parentheses first. Then you would combine like terms and solve from there on. We are solving for the variable x.

Solving for x.

Start by distributing (multiplying) 0.2 and 0.4 inside the parentheses that they are "attached" to (parentheses on their right). After distributing, rewrite the problem.

0.2x + 10 - 6 = 1.2x + 8

1] Combine like terms on the left side of the equation.

0.2x + 4 = 1.2x + 8

2] Subtract 4 from both sides of the equation.

0.2x = 1.2x + 4

3] Subtract 1.2x from both sides of the equation.

-x = 4

4] Divide both sides of the equation by -1 to make the variable x a positive.

x = -4