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Solve 9x + 10 = 127

The solution of 9x + 10 = 127 is x = 13.

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The lines y = 9x + 10 and y = 127 meet at x = 138101214161880100120140160180x = 13y = 9x + 10y = 127
The lines y = 9x + 10 and y = 127 meet at x = 13. 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+10=1279x + 10 = 127
  2. 2

    Subtract 10 from both sides:

    9x+10−10=127−10 ⇒ 9x=1179x + 10 - 10 = 127 - 10 \ \Rightarrow\ 9x = 117
  3. 3

    Divide both sides by 9:

    9x9=1179 ⇒ x=13\frac{9x}{9} = \frac{117}{9} \ \Rightarrow\ x = 13
  4. 4

    Check: put x = 13 back into the equation.

    9⋅13+10=117+10=127✓9\cdot13 + 10 = 117 + 10 = 127 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 10 = 127\ \Rightarrow\ x = 13 \]
\[ 9x + 10 = 127 \]
\[ 9x + 10 - 10 = 127 - 10 \ \Rightarrow\ 9x = 117 \]
\[ \frac{9x}{9} = \frac{117}{9} \ \Rightarrow\ x = 13 \]
\[ 9\cdot13 + 10 = 117 + 10 = 127 \checkmark \]

Trying values of x in 9x + 10 = 127

x9x + 10Equals 127?
11109no
12118no
13127yes
14136no
15145no

Questions

What is x in 9x + 10 = 127?

The solution of 9x + 10 = 127 is x = 13.

How do you solve 9x + 10 = 127?

Subtract 10 from both sides to get 9x = 117, then divide both sides by 9 to get x = 13.

How do I check the answer?

Replace x by 13: 9(13) + 10 = 127, which is 127.

Similar equations

    Solve 9x + 10 = 127: x = 13 (steps and check) | WordGPT