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Solve 4x + 9 = 37

The solution of 4x + 9 = 37 is x = 7.

The lines y = 4x + 9 and y = 37 meet at x = 724681012102030405060x = 7y = 4x + 9y = 37
The lines y = 4x + 9 and y = 37 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.

    4x+9=374x + 9 = 37
  2. 2

    Subtract 9 from both sides:

    4x+9−9=37−9 ⇒ 4x=284x + 9 - 9 = 37 - 9 \ \Rightarrow\ 4x = 28
  3. 3

    Divide both sides by 4:

    4x4=284 ⇒ x=7\frac{4x}{4} = \frac{28}{4} \ \Rightarrow\ x = 7
  4. 4

    Check: put x = 7 back into the equation.

    4⋅7+9=28+9=37✓4\cdot7 + 9 = 28 + 9 = 37 \checkmark
LaTeX source of the formulas on this page
\[ 4x + 9 = 37\ \Rightarrow\ x = 7 \]
\[ 4x + 9 = 37 \]
\[ 4x + 9 - 9 = 37 - 9 \ \Rightarrow\ 4x = 28 \]
\[ \frac{4x}{4} = \frac{28}{4} \ \Rightarrow\ x = 7 \]
\[ 4\cdot7 + 9 = 28 + 9 = 37 \checkmark \]

Trying values of x in 4x + 9 = 37

x4x + 9Equals 37?
529no
633no
737yes
841no
945no

Questions

What is x in 4x + 9 = 37?

The solution of 4x + 9 = 37 is x = 7.

How do you solve 4x + 9 = 37?

Subtract 9 from both sides to get 4x = 28, then divide both sides by 4 to get x = 7.

How do I check the answer?

Replace x by 7: 4(7) + 9 = 37, which is 37.

Similar equations

    Solve 4x + 9 = 37: x = 7 (steps and check) | WordGPT