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Solve 3x + 6 = 3

The solution of 3x + 6 = 3 is x = -1.

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The lines y = 3x + 6 and y = 3 meet at x = -1-6-4-224-15-10-55101520x = -1y = 3x + 6y = 3
The lines y = 3x + 6 and y = 3 meet at x = -1. 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.

    3x+6=33x + 6 = 3
  2. 2

    Subtract 6 from both sides:

    3x+6−6=3−6 ⇒ 3x=−33x + 6 - 6 = 3 - 6 \ \Rightarrow\ 3x = -3
  3. 3

    Divide both sides by 3:

    3x3=−33 ⇒ x=−1\frac{3x}{3} = \frac{-3}{3} \ \Rightarrow\ x = -1
  4. 4

    Check: put x = -1 back into the equation.

    3⋅(−1)+6=−3+6=3✓3\cdot(-1) + 6 = -3 + 6 = 3 \checkmark
LaTeX source of the formulas on this page
\[ 3x + 6 = 3\ \Rightarrow\ x = -1 \]
\[ 3x + 6 = 3 \]
\[ 3x + 6 - 6 = 3 - 6 \ \Rightarrow\ 3x = -3 \]
\[ \frac{3x}{3} = \frac{-3}{3} \ \Rightarrow\ x = -1 \]
\[ 3\cdot(-1) + 6 = -3 + 6 = 3 \checkmark \]

Trying values of x in 3x + 6 = 3

x3x + 6Equals 3?
-3-3no
-20no
-13yes
06no
19no

Questions

What is x in 3x + 6 = 3?

The solution of 3x + 6 = 3 is x = -1.

How do you solve 3x + 6 = 3?

Subtract 6 from both sides to get 3x = -3, then divide both sides by 3 to get x = -1.

How do I check the answer?

Replace x by -1: 3(-1) + 6 = 3, which is 3.

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    Solve 3x + 6 = 3: x = -1 (steps and check) | WordGPT