twice a number increased by 3 is 7

Question

I am having trouble with this math question it says twice a number increased by 3 is 7. I don't get it.

Answer 1

Twice a number increased by 3 is 7.

This question test your ability to 'translate' words into math symbols.

Twice a number can be translated into '(2)(x)' or '2x'.

Increased by 3 can be translated into '+ 3'.

Is 7 can be translated into '=7'.

Now we can put it all together into one formula and solve for x.

Twice a number increased by 3 is 7.

2x + 3 = 7

Subtract 3 from each side where the = sign separates the left from the right side.

2x+3-3=7-3

2x=4 (this reads 2 times x equals 4)

Divide both sides by 2

2x/2 = 4/2

x = 2