What is the first step in solving 3x+4=20

Answers

Answer 1

Answer:

Answer:

Subtract four on both sides.

Step-by-step explanation:

When we solve for x, we do the reverse of PEMDAS. The last letter is S, so we subtract. There is no subtraction, so we move to A for addition. There is addition, the plus 4, so to get rid of it, we subtract 4 on each side.

Answer 2

Answer:

Answer: Subtract 4 from both sides of the equation.

Step-by-step explanation: In algebra, the equal sign separates and equation. 20 is a separate part. You would take the +4 and subtract it from itself and then also subtract 4 from the 20 which would give you 3x=16

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3÷0.1=30Choose all of the statements that explain how the quotient relates to the dividend.
Dividing 3 by 0.1 tells how many tenths are in 3 ones.

3÷0.1 is the same as 30÷1, which is 30.

It takes 10 tenths to make 1 whole, so it will take 3 times 10 tenths to make 3 wholes. 3×10=30.

The quotient has 110 of the value of the dividend so the dividend must be 10 times greater.

The 3 in 30 is 1 place to the right of the 3 in the whole number 3 which increases the value of the number 10 times.

Answers

The 1st and 2nd are correct.

both of your answers are correct and i am a expert at this thanks

A girl is half as old as her sister and is also two years younger than her brother. If the sum of the three children's ages is $34$ years, what is the product of their ages?