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Solve 9x + 10 = 73

The solution of 9x + 10 = 73 is x = 7.

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The lines y = 9x + 10 and y = 73 meet at x = 72468101220406080100120x = 7y = 9x + 10y = 73
The lines y = 9x + 10 and y = 73 meet at x = 7. 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+10=739x + 10 = 73
  2. 2

    Subtract 10 from both sides:

    9x+10−10=73−10 ⇒ 9x=639x + 10 - 10 = 73 - 10 \ \Rightarrow\ 9x = 63
  3. 3

    Divide both sides by 9:

    9x9=639 ⇒ x=7\frac{9x}{9} = \frac{63}{9} \ \Rightarrow\ x = 7
  4. 4

    Check: put x = 7 back into the equation.

    9⋅7+10=63+10=73✓9\cdot7 + 10 = 63 + 10 = 73 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 10 = 73\ \Rightarrow\ x = 7 \]
\[ 9x + 10 = 73 \]
\[ 9x + 10 - 10 = 73 - 10 \ \Rightarrow\ 9x = 63 \]
\[ \frac{9x}{9} = \frac{63}{9} \ \Rightarrow\ x = 7 \]
\[ 9\cdot7 + 10 = 63 + 10 = 73 \checkmark \]

Trying values of x in 9x + 10 = 73

x9x + 10Equals 73?
555no
664no
773yes
882no
991no

Questions

What is x in 9x + 10 = 73?

The solution of 9x + 10 = 73 is x = 7.

How do you solve 9x + 10 = 73?

Subtract 10 from both sides to get 9x = 63, then divide both sides by 9 to get x = 7.

How do I check the answer?

Replace x by 7: 9(7) + 10 = 73, which is 73.

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    Solve 9x + 10 = 73: x = 7 (steps and check) | WordGPT