WordGPT

Solve 9x + 9 = 189

The solution of 9x + 9 = 189 is x = 20.

Explain it step by step in chatMake a short video of it
The lines y = 9x + 9 and y = 189 meet at x = 2014161820222426140160180200220240x = 20y = 9x + 9y = 189
The lines y = 9x + 9 and y = 189 meet at x = 20. 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+9=1899x + 9 = 189
  2. 2

    Subtract 9 from both sides:

    9x+9−9=189−9 ⇒ 9x=1809x + 9 - 9 = 189 - 9 \ \Rightarrow\ 9x = 180
  3. 3

    Divide both sides by 9:

    9x9=1809 ⇒ x=20\frac{9x}{9} = \frac{180}{9} \ \Rightarrow\ x = 20
  4. 4

    Check: put x = 20 back into the equation.

    9⋅20+9=180+9=189✓9\cdot20 + 9 = 180 + 9 = 189 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 9 = 189\ \Rightarrow\ x = 20 \]
\[ 9x + 9 = 189 \]
\[ 9x + 9 - 9 = 189 - 9 \ \Rightarrow\ 9x = 180 \]
\[ \frac{9x}{9} = \frac{180}{9} \ \Rightarrow\ x = 20 \]
\[ 9\cdot20 + 9 = 180 + 9 = 189 \checkmark \]

Trying values of x in 9x + 9 = 189

x9x + 9Equals 189?
18171no
19180no
20189yes
21198no
22207no

Questions

What is x in 9x + 9 = 189?

The solution of 9x + 9 = 189 is x = 20.

How do you solve 9x + 9 = 189?

Subtract 9 from both sides to get 9x = 180, then divide both sides by 9 to get x = 20.

How do I check the answer?

Replace x by 20: 9(20) + 9 = 189, which is 189.

Similar equations

    Solve 9x + 9 = 189: x = 20 (steps and check) | WordGPT