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Solve 9x + 1 = 55

The solution of 9x + 1 = 55 is x = 6.

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The lines y = 9x + 1 and y = 55 meet at x = 62468101220406080100120x = 6y = 9x + 1y = 55
The lines y = 9x + 1 and y = 55 meet at x = 6. 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.

    9x+1=559x + 1 = 55
  2. 2

    Subtract 1 from both sides:

    9x+1−1=55−1 ⇒ 9x=549x + 1 - 1 = 55 - 1 \ \Rightarrow\ 9x = 54
  3. 3

    Divide both sides by 9:

    9x9=549 ⇒ x=6\frac{9x}{9} = \frac{54}{9} \ \Rightarrow\ x = 6
  4. 4

    Check: put x = 6 back into the equation.

    9⋅6+1=54+1=55✓9\cdot6 + 1 = 54 + 1 = 55 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 1 = 55\ \Rightarrow\ x = 6 \]
\[ 9x + 1 = 55 \]
\[ 9x + 1 - 1 = 55 - 1 \ \Rightarrow\ 9x = 54 \]
\[ \frac{9x}{9} = \frac{54}{9} \ \Rightarrow\ x = 6 \]
\[ 9\cdot6 + 1 = 54 + 1 = 55 \checkmark \]

Trying values of x in 9x + 1 = 55

x9x + 1Equals 55?
437no
546no
655yes
764no
873no

Questions

What is x in 9x + 1 = 55?

The solution of 9x + 1 = 55 is x = 6.

How do you solve 9x + 1 = 55?

Subtract 1 from both sides to get 9x = 54, then divide both sides by 9 to get x = 6.

How do I check the answer?

Replace x by 6: 9(6) + 1 = 55, which is 55.

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    Solve 9x + 1 = 55: x = 6 (steps and check) | WordGPT