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Solve 2x + 4 = 38

The solution of 2x + 4 = 38 is x = 17.

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The lines y = 2x + 4 and y = 38 meet at x = 17121416182022253035404550x = 17y = 2x + 4y = 38
The lines y = 2x + 4 and y = 38 meet at x = 17. 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+4=382x + 4 = 38
  2. 2

    Subtract 4 from both sides:

    2x+4−4=38−4 ⇒ 2x=342x + 4 - 4 = 38 - 4 \ \Rightarrow\ 2x = 34
  3. 3

    Divide both sides by 2:

    2x2=342 ⇒ x=17\frac{2x}{2} = \frac{34}{2} \ \Rightarrow\ x = 17
  4. 4

    Check: put x = 17 back into the equation.

    2⋅17+4=34+4=38✓2\cdot17 + 4 = 34 + 4 = 38 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 4 = 38\ \Rightarrow\ x = 17 \]
\[ 2x + 4 = 38 \]
\[ 2x + 4 - 4 = 38 - 4 \ \Rightarrow\ 2x = 34 \]
\[ \frac{2x}{2} = \frac{34}{2} \ \Rightarrow\ x = 17 \]
\[ 2\cdot17 + 4 = 34 + 4 = 38 \checkmark \]

Trying values of x in 2x + 4 = 38

x2x + 4Equals 38?
1534no
1636no
1738yes
1840no
1942no

Questions

What is x in 2x + 4 = 38?

The solution of 2x + 4 = 38 is x = 17.

How do you solve 2x + 4 = 38?

Subtract 4 from both sides to get 2x = 34, then divide both sides by 2 to get x = 17.

How do I check the answer?

Replace x by 17: 2(17) + 4 = 38, which is 38.

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    Solve 2x + 4 = 38: x = 17 (steps and check) | WordGPT