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Solve 11x + 2 = 90

The solution of 11x + 2 = 90 is x = 8.

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The lines y = 11x + 2 and y = 90 meet at x = 8246810121420406080100120140160x = 8y = 11x + 2y = 90
The lines y = 11x + 2 and y = 90 meet at x = 8. 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=9011x + 2 = 90
  2. 2

    Subtract 2 from both sides:

    11x+2−2=90−2 ⇒ 11x=8811x + 2 - 2 = 90 - 2 \ \Rightarrow\ 11x = 88
  3. 3

    Divide both sides by 11:

    11x11=8811 ⇒ x=8\frac{11x}{11} = \frac{88}{11} \ \Rightarrow\ x = 8
  4. 4

    Check: put x = 8 back into the equation.

    11⋅8+2=88+2=90✓11\cdot8 + 2 = 88 + 2 = 90 \checkmark
LaTeX source of the formulas on this page
\[ 11x + 2 = 90\ \Rightarrow\ x = 8 \]
\[ 11x + 2 = 90 \]
\[ 11x + 2 - 2 = 90 - 2 \ \Rightarrow\ 11x = 88 \]
\[ \frac{11x}{11} = \frac{88}{11} \ \Rightarrow\ x = 8 \]
\[ 11\cdot8 + 2 = 88 + 2 = 90 \checkmark \]

Trying values of x in 11x + 2 = 90

x11x + 2Equals 90?
668no
779no
890yes
9101no
10112no

Questions

What is x in 11x + 2 = 90?

The solution of 11x + 2 = 90 is x = 8.

How do you solve 11x + 2 = 90?

Subtract 2 from both sides to get 11x = 88, then divide both sides by 11 to get x = 8.

How do I check the answer?

Replace x by 8: 11(8) + 2 = 90, which is 90.

Similar equations

    Solve 11x + 2 = 90: x = 8 (steps and check) | WordGPT