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Solve 11x + 2 = 123

The solution of 11x + 2 = 123 is x = 11.

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The lines y = 11x + 2 and y = 123 meet at x = 1168101214166080100120140160180200x = 11y = 11x + 2y = 123
The lines y = 11x + 2 and y = 123 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+2=12311x + 2 = 123
  2. 2

    Subtract 2 from both sides:

    11x+2−2=123−2 ⇒ 11x=12111x + 2 - 2 = 123 - 2 \ \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+2=121+2=123✓11\cdot11 + 2 = 121 + 2 = 123 \checkmark
LaTeX source of the formulas on this page
\[ 11x + 2 = 123\ \Rightarrow\ x = 11 \]
\[ 11x + 2 = 123 \]
\[ 11x + 2 - 2 = 123 - 2 \ \Rightarrow\ 11x = 121 \]
\[ \frac{11x}{11} = \frac{121}{11} \ \Rightarrow\ x = 11 \]
\[ 11\cdot11 + 2 = 121 + 2 = 123 \checkmark \]

Trying values of x in 11x + 2 = 123

x11x + 2Equals 123?
9101no
10112no
11123yes
12134no
13145no

Questions

What is x in 11x + 2 = 123?

The solution of 11x + 2 = 123 is x = 11.

How do you solve 11x + 2 = 123?

Subtract 2 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) + 2 = 123, which is 123.

Similar equations

    Solve 11x + 2 = 123: x = 11 (steps and check) | WordGPT