WordGPT

Solve 9x + 8 = 125

The solution of 9x + 8 = 125 is x = 13.

Explain it step by step in chatMake a short video of it
The lines y = 9x + 8 and y = 125 meet at x = 13810121416186080100120140160180x = 13y = 9x + 8y = 125
The lines y = 9x + 8 and y = 125 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+8=1259x + 8 = 125
  2. 2

    Subtract 8 from both sides:

    9x+8−8=125−8 ⇒ 9x=1179x + 8 - 8 = 125 - 8 \ \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+8=117+8=125✓9\cdot13 + 8 = 117 + 8 = 125 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 8 = 125\ \Rightarrow\ x = 13 \]
\[ 9x + 8 = 125 \]
\[ 9x + 8 - 8 = 125 - 8 \ \Rightarrow\ 9x = 117 \]
\[ \frac{9x}{9} = \frac{117}{9} \ \Rightarrow\ x = 13 \]
\[ 9\cdot13 + 8 = 117 + 8 = 125 \checkmark \]

Trying values of x in 9x + 8 = 125

x9x + 8Equals 125?
11107no
12116no
13125yes
14134no
15143no

Questions

What is x in 9x + 8 = 125?

The solution of 9x + 8 = 125 is x = 13.

How do you solve 9x + 8 = 125?

Subtract 8 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) + 8 = 125, which is 125.

Similar equations

    Solve 9x + 8 = 125: x = 13 (steps and check) | WordGPT