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Solve 2x + 11 = 25

The solution of 2x + 11 = 25 is x = 7.

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The lines y = 2x + 11 and y = 25 meet at x = 7246810121520253035x = 7y = 2x + 11y = 25
The lines y = 2x + 11 and y = 25 meet at x = 7. 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+11=252x + 11 = 25
  2. 2

    Subtract 11 from both sides:

    2x+11−11=25−11 ⇒ 2x=142x + 11 - 11 = 25 - 11 \ \Rightarrow\ 2x = 14
  3. 3

    Divide both sides by 2:

    2x2=142 ⇒ x=7\frac{2x}{2} = \frac{14}{2} \ \Rightarrow\ x = 7
  4. 4

    Check: put x = 7 back into the equation.

    2⋅7+11=14+11=25✓2\cdot7 + 11 = 14 + 11 = 25 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 11 = 25\ \Rightarrow\ x = 7 \]
\[ 2x + 11 = 25 \]
\[ 2x + 11 - 11 = 25 - 11 \ \Rightarrow\ 2x = 14 \]
\[ \frac{2x}{2} = \frac{14}{2} \ \Rightarrow\ x = 7 \]
\[ 2\cdot7 + 11 = 14 + 11 = 25 \checkmark \]

Trying values of x in 2x + 11 = 25

x2x + 11Equals 25?
521no
623no
725yes
827no
929no

Questions

What is x in 2x + 11 = 25?

The solution of 2x + 11 = 25 is x = 7.

How do you solve 2x + 11 = 25?

Subtract 11 from both sides to get 2x = 14, then divide both sides by 2 to get x = 7.

How do I check the answer?

Replace x by 7: 2(7) + 11 = 25, which is 25.

Similar equations

    Solve 2x + 11 = 25: x = 7 (steps and check) | WordGPT