WordGPT

Solve 7x + 7 = 0

The solution of 7x + 7 = 0 is x = -1.

Explain it step by step in chatMake a short video of it
The lines y = 7x + 7 and y = 0 meet at x = -1-6-4-224-40-202040x = -1y = 7x + 7y = 0
The lines y = 7x + 7 and y = 0 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.

    7x+7=07x + 7 = 0
  2. 2

    Subtract 7 from both sides:

    7x+7āˆ’7=0āˆ’7Ā ā‡’Ā 7x=āˆ’77x + 7 - 7 = 0 - 7 \ \Rightarrow\ 7x = -7
  3. 3

    Divide both sides by 7:

    7x7=āˆ’77Ā ā‡’Ā x=āˆ’1\frac{7x}{7} = \frac{-7}{7} \ \Rightarrow\ x = -1
  4. 4

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

    7ā‹…(āˆ’1)+7=āˆ’7+7=0āœ“7\cdot(-1) + 7 = -7 + 7 = 0 \checkmark
LaTeX source of the formulas on this page
\[ 7x + 7 = 0\ \Rightarrow\ x = -1 \]
\[ 7x + 7 = 0 \]
\[ 7x + 7 - 7 = 0 - 7 \ \Rightarrow\ 7x = -7 \]
\[ \frac{7x}{7} = \frac{-7}{7} \ \Rightarrow\ x = -1 \]
\[ 7\cdot(-1) + 7 = -7 + 7 = 0 \checkmark \]

Trying values of x in 7x + 7 = 0

x7x + 7Equals 0?
-3-14no
-2-7no
-10yes
07no
114no

Questions

What is x in 7x + 7 = 0?

The solution of 7x + 7 = 0 is x = -1.

How do you solve 7x + 7 = 0?

Subtract 7 from both sides to get 7x = -7, then divide both sides by 7 to get x = -1.

How do I check the answer?

Replace x by -1: 7(-1) + 7 = 0, which is 0.

Similar equations

    Solve 7x + 7 = 0: x = -1 (steps and check) | WordGPT