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Solve 9x + 4 = 103

The solution of 9x + 4 = 103 is x = 11.

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The lines y = 9x + 4 and y = 103 meet at x = 116810121416406080100120140160x = 11y = 9x + 4y = 103
The lines y = 9x + 4 and y = 103 meet at x = 11. 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+4=1039x + 4 = 103
  2. 2

    Subtract 4 from both sides:

    9x+4−4=103−4 ⇒ 9x=999x + 4 - 4 = 103 - 4 \ \Rightarrow\ 9x = 99
  3. 3

    Divide both sides by 9:

    9x9=999 ⇒ x=11\frac{9x}{9} = \frac{99}{9} \ \Rightarrow\ x = 11
  4. 4

    Check: put x = 11 back into the equation.

    9⋅11+4=99+4=103✓9\cdot11 + 4 = 99 + 4 = 103 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 4 = 103\ \Rightarrow\ x = 11 \]
\[ 9x + 4 = 103 \]
\[ 9x + 4 - 4 = 103 - 4 \ \Rightarrow\ 9x = 99 \]
\[ \frac{9x}{9} = \frac{99}{9} \ \Rightarrow\ x = 11 \]
\[ 9\cdot11 + 4 = 99 + 4 = 103 \checkmark \]

Trying values of x in 9x + 4 = 103

x9x + 4Equals 103?
985no
1094no
11103yes
12112no
13121no

Questions

What is x in 9x + 4 = 103?

The solution of 9x + 4 = 103 is x = 11.

How do you solve 9x + 4 = 103?

Subtract 4 from both sides to get 9x = 99, then divide both sides by 9 to get x = 11.

How do I check the answer?

Replace x by 11: 9(11) + 4 = 103, which is 103.

Similar equations

    Solve 9x + 4 = 103: x = 11 (steps and check) | WordGPT