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Solve 2x + 8 = 34

The solution of 2x + 8 = 34 is x = 13.

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The lines y = 2x + 8 and y = 34 meet at x = 1381012141618202530354045x = 13y = 2x + 8y = 34
The lines y = 2x + 8 and y = 34 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+8=342x + 8 = 34
  2. 2

    Subtract 8 from both sides:

    2x+8−8=34−8 ⇒ 2x=262x + 8 - 8 = 34 - 8 \ \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+8=26+8=34✓2\cdot13 + 8 = 26 + 8 = 34 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 8 = 34\ \Rightarrow\ x = 13 \]
\[ 2x + 8 = 34 \]
\[ 2x + 8 - 8 = 34 - 8 \ \Rightarrow\ 2x = 26 \]
\[ \frac{2x}{2} = \frac{26}{2} \ \Rightarrow\ x = 13 \]
\[ 2\cdot13 + 8 = 26 + 8 = 34 \checkmark \]

Trying values of x in 2x + 8 = 34

x2x + 8Equals 34?
1130no
1232no
1334yes
1436no
1538no

Questions

What is x in 2x + 8 = 34?

The solution of 2x + 8 = 34 is x = 13.

How do you solve 2x + 8 = 34?

Subtract 8 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) + 8 = 34, which is 34.

Similar equations

    Solve 2x + 8 = 34: x = 13 (steps and check) | WordGPT