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Solve 2x + 2 = 38

The solution of 2x + 2 = 38 is x = 18.

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The lines y = 2x + 2 and y = 38 meet at x = 1812141618202224253035404550x = 18y = 2x + 2y = 38
The lines y = 2x + 2 and y = 38 meet at x = 18. 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+2=382x + 2 = 38
  2. 2

    Subtract 2 from both sides:

    2x+2−2=38−2 ⇒ 2x=362x + 2 - 2 = 38 - 2 \ \Rightarrow\ 2x = 36
  3. 3

    Divide both sides by 2:

    2x2=362 ⇒ x=18\frac{2x}{2} = \frac{36}{2} \ \Rightarrow\ x = 18
  4. 4

    Check: put x = 18 back into the equation.

    2⋅18+2=36+2=38✓2\cdot18 + 2 = 36 + 2 = 38 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 2 = 38\ \Rightarrow\ x = 18 \]
\[ 2x + 2 = 38 \]
\[ 2x + 2 - 2 = 38 - 2 \ \Rightarrow\ 2x = 36 \]
\[ \frac{2x}{2} = \frac{36}{2} \ \Rightarrow\ x = 18 \]
\[ 2\cdot18 + 2 = 36 + 2 = 38 \checkmark \]

Trying values of x in 2x + 2 = 38

x2x + 2Equals 38?
1634no
1736no
1838yes
1940no
2042no

Questions

What is x in 2x + 2 = 38?

The solution of 2x + 2 = 38 is x = 18.

How do you solve 2x + 2 = 38?

Subtract 2 from both sides to get 2x = 36, then divide both sides by 2 to get x = 18.

How do I check the answer?

Replace x by 18: 2(18) + 2 = 38, which is 38.

Similar equations

    Solve 2x + 2 = 38: x = 18 (steps and check) | WordGPT