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Solve 9x + 9 = 162

The solution of 9x + 9 = 162 is x = 17.

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The lines y = 9x + 9 and y = 162 meet at x = 17121416182022100120140160180200220x = 17y = 9x + 9y = 162
The lines y = 9x + 9 and y = 162 meet at x = 17. 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=1629x + 9 = 162
  2. 2

    Subtract 9 from both sides:

    9x+9−9=162−9 ⇒ 9x=1539x + 9 - 9 = 162 - 9 \ \Rightarrow\ 9x = 153
  3. 3

    Divide both sides by 9:

    9x9=1539 ⇒ x=17\frac{9x}{9} = \frac{153}{9} \ \Rightarrow\ x = 17
  4. 4

    Check: put x = 17 back into the equation.

    9⋅17+9=153+9=162✓9\cdot17 + 9 = 153 + 9 = 162 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 9 = 162\ \Rightarrow\ x = 17 \]
\[ 9x + 9 = 162 \]
\[ 9x + 9 - 9 = 162 - 9 \ \Rightarrow\ 9x = 153 \]
\[ \frac{9x}{9} = \frac{153}{9} \ \Rightarrow\ x = 17 \]
\[ 9\cdot17 + 9 = 153 + 9 = 162 \checkmark \]

Trying values of x in 9x + 9 = 162

x9x + 9Equals 162?
15144no
16153no
17162yes
18171no
19180no

Questions

What is x in 9x + 9 = 162?

The solution of 9x + 9 = 162 is x = 17.

How do you solve 9x + 9 = 162?

Subtract 9 from both sides to get 9x = 153, then divide both sides by 9 to get x = 17.

How do I check the answer?

Replace x by 17: 9(17) + 9 = 162, which is 162.

Similar equations

    Solve 9x + 9 = 162: x = 17 (steps and check) | WordGPT