Math

posted by .

Add one to a number, then double the sum, and you get 56.

how do i solve it and write it as a equation

(x+1)*2=56

1. divide both sides by 2
2. subtract 1 from both sides

you get x=27

For all of these questions just remember that when they say "a number" you should think of a variable like x or y. And when they say add you use a plus sign +, when they say difference use a - sign. When they say double its multiplication, etc.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    how do you solve 9x=6 9x=6 Divide both side by 9. (Remember you can add, subtract, multiply, etc but do to both sides what you do to one.) 9x/9 = 6/9 The 9's divide out on the left leaving x. x = 6/9. I will let you reduce the answer. …
  2. math

    can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty -two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference …
  3. MATH PLEASE CHECK IT!!2

    m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) …
  4. math

    hi, i need help with solving this equation for "y" 2x+3y=-2 2x+3y=-2 Get y on one side. Subtract 2x from both sides. 2x-2x+3y=-2-2x combine terms. 3y=-2-2x Divide both sides by 3. 3y/3 = (-2-2x)/3 y = ?
  5. algebra

    I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 …
  6. math

    Solve each formula for n. 2n = 4xp-6 3m-n=4s r/n+2=p t=100(n+3) pv/nR=T 8a+2=6b In the first example, divide both sides of the equation by 2 In the second example, add n to both sides of the equation. Try these yourself. They aren't …
  7. maths

    i have to make y the subject of this equation: 4t + 7y - 9 = 0 wod it be y = 4t + 9/7 ?
  8. Algebra

    I am re posting this for fear that it was overlooked earlier. I have also decided to show my work in the hopes of preventing any issues that might arise. Solve the absolute value equation. I y+3 I +5=2y Would the solutions be 8=y and …
  9. Math

    Emmy is 12. She writes an equation to find her mother's age, m. m - 12 + 35 What operation solves the equation for m?
  10. Algebra

    Which of the following describes a correct method for solving the equation below?

More Similar Questions