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Solve 11x + 4 = 125

The solution of 11x + 4 = 125 is x = 11.

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The lines y = 11x + 4 and y = 125 meet at x = 1168101214166080100120140160180200x = 11y = 11x + 4y = 125
The lines y = 11x + 4 and y = 125 meet at x = 11. 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.

    11x+4=12511x + 4 = 125
  2. 2

    Subtract 4 from both sides:

    11x+4−4=125−4 ⇒ 11x=12111x + 4 - 4 = 125 - 4 \ \Rightarrow\ 11x = 121
  3. 3

    Divide both sides by 11:

    11x11=12111 ⇒ x=11\frac{11x}{11} = \frac{121}{11} \ \Rightarrow\ x = 11
  4. 4

    Check: put x = 11 back into the equation.

    11⋅11+4=121+4=125✓11\cdot11 + 4 = 121 + 4 = 125 \checkmark
LaTeX source of the formulas on this page
\[ 11x + 4 = 125\ \Rightarrow\ x = 11 \]
\[ 11x + 4 = 125 \]
\[ 11x + 4 - 4 = 125 - 4 \ \Rightarrow\ 11x = 121 \]
\[ \frac{11x}{11} = \frac{121}{11} \ \Rightarrow\ x = 11 \]
\[ 11\cdot11 + 4 = 121 + 4 = 125 \checkmark \]

Trying values of x in 11x + 4 = 125

x11x + 4Equals 125?
9103no
10114no
11125yes
12136no
13147no

Questions

What is x in 11x + 4 = 125?

The solution of 11x + 4 = 125 is x = 11.

How do you solve 11x + 4 = 125?

Subtract 4 from both sides to get 11x = 121, then divide both sides by 11 to get x = 11.

How do I check the answer?

Replace x by 11: 11(11) + 4 = 125, which is 125.

Similar equations

    Solve 11x + 4 = 125: x = 11 (steps and check) | WordGPT