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Solve 6x + 9 = 9

The solution of 6x + 9 = 9 is x = 0.

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The lines y = 6x + 9 and y = 9 meet at x = 0-6-4-2246-30-20-101020304050x = 0y = 6x + 9y = 9
The lines y = 6x + 9 and y = 9 meet at x = 0. 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.

    6x+9=96x + 9 = 9
  2. 2

    Subtract 9 from both sides:

    6x+9−9=9−9 ⇒ 6x=06x + 9 - 9 = 9 - 9 \ \Rightarrow\ 6x = 0
  3. 3

    Divide both sides by 6:

    6x6=06 ⇒ x=0\frac{6x}{6} = \frac{0}{6} \ \Rightarrow\ x = 0
  4. 4

    Check: put x = 0 back into the equation.

    6⋅0+9=0+9=9✓6\cdot0 + 9 = 0 + 9 = 9 \checkmark
LaTeX source of the formulas on this page
\[ 6x + 9 = 9\ \Rightarrow\ x = 0 \]
\[ 6x + 9 = 9 \]
\[ 6x + 9 - 9 = 9 - 9 \ \Rightarrow\ 6x = 0 \]
\[ \frac{6x}{6} = \frac{0}{6} \ \Rightarrow\ x = 0 \]
\[ 6\cdot0 + 9 = 0 + 9 = 9 \checkmark \]

Trying values of x in 6x + 9 = 9

x6x + 9Equals 9?
-2-3no
-13no
09yes
115no
221no

Questions

What is x in 6x + 9 = 9?

The solution of 6x + 9 = 9 is x = 0.

How do you solve 6x + 9 = 9?

Subtract 9 from both sides to get 6x = 0, then divide both sides by 6 to get x = 0.

How do I check the answer?

Replace x by 0: 6(0) + 9 = 9, which is 9.

Similar equations

    Solve 6x + 9 = 9: x = 0 (steps and check) | WordGPT