Question

Solve for x: the quantity of x plus 20 over 2 = 3x

Answer 1

\[\frac{x+20}{2}\]

Answer 2

x+202=3x

2(x+202)=3x(2)
This cancels out the 2 in the fraction
x+20=6x

-x -x
20 = 5x
/5 /5
x = 4

Answer 3

x+20=3x

Answer 4

\[2(x+20)=3x(2) This cancels out the 2 \in the fraction x+20=6x -x -x 20 = 5x /5 /5 x = 4\]

Answer 5

Here - x + 20/2 = 3x
multiple both sides by 2 to get rid of the 2
2(x+20/2) = 3x(2)
the 2s cancel each other out on the left side
x+20=6x
you want to get the x's on the same side
so subtract x from each side
20=5x
divide both sides by 5 to get x on its own
20/5 = 5x/5
4=x

Answer 6

mm.. I thought it is (x+20)/2