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Solve 2x + 12 = 38

The solution of 2x + 12 = 38 is x = 13.

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The lines y = 2x + 12 and y = 38 meet at x = 1381012141618253035404550x = 13y = 2x + 12y = 38
The lines y = 2x + 12 and y = 38 meet at x = 13. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

  1. 1

    The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.

    2x+12=382x + 12 = 38
  2. 2

    Subtract 12 from both sides:

    2x+12−12=38−12 ⇒ 2x=262x + 12 - 12 = 38 - 12 \ \Rightarrow\ 2x = 26
  3. 3

    Divide both sides by 2:

    2x2=262 ⇒ x=13\frac{2x}{2} = \frac{26}{2} \ \Rightarrow\ x = 13
  4. 4

    Check: put x = 13 back into the equation.

    2⋅13+12=26+12=38✓2\cdot13 + 12 = 26 + 12 = 38 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 12 = 38\ \Rightarrow\ x = 13 \]
\[ 2x + 12 = 38 \]
\[ 2x + 12 - 12 = 38 - 12 \ \Rightarrow\ 2x = 26 \]
\[ \frac{2x}{2} = \frac{26}{2} \ \Rightarrow\ x = 13 \]
\[ 2\cdot13 + 12 = 26 + 12 = 38 \checkmark \]

Trying values of x in 2x + 12 = 38

x2x + 12Equals 38?
1134no
1236no
1338yes
1440no
1542no

Questions

What is x in 2x + 12 = 38?

The solution of 2x + 12 = 38 is x = 13.

How do you solve 2x + 12 = 38?

Subtract 12 from both sides to get 2x = 26, then divide both sides by 2 to get x = 13.

How do I check the answer?

Replace x by 13: 2(13) + 12 = 38, which is 38.

Similar equations

    Solve 2x + 12 = 38: x = 13 (steps and check) | WordGPT