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Solve 9x + 4 = 157

The solution of 9x + 4 = 157 is x = 17.

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The lines y = 9x + 4 and y = 157 meet at x = 17121416182022100120140160180200220x = 17y = 9x + 4y = 157
The lines y = 9x + 4 and y = 157 meet at x = 17. 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=1579x + 4 = 157
  2. 2

    Subtract 4 from both sides:

    9x+4−4=157−4 ⇒ 9x=1539x + 4 - 4 = 157 - 4 \ \Rightarrow\ 9x = 153
  3. 3

    Divide both sides by 9:

    9x9=1539 ⇒ x=17\frac{9x}{9} = \frac{153}{9} \ \Rightarrow\ x = 17
  4. 4

    Check: put x = 17 back into the equation.

    9⋅17+4=153+4=157✓9\cdot17 + 4 = 153 + 4 = 157 \checkmark
LaTeX source of the formulas on this page
\[ 9x + 4 = 157\ \Rightarrow\ x = 17 \]
\[ 9x + 4 = 157 \]
\[ 9x + 4 - 4 = 157 - 4 \ \Rightarrow\ 9x = 153 \]
\[ \frac{9x}{9} = \frac{153}{9} \ \Rightarrow\ x = 17 \]
\[ 9\cdot17 + 4 = 153 + 4 = 157 \checkmark \]

Trying values of x in 9x + 4 = 157

x9x + 4Equals 157?
15139no
16148no
17157yes
18166no
19175no

Questions

What is x in 9x + 4 = 157?

The solution of 9x + 4 = 157 is x = 17.

How do you solve 9x + 4 = 157?

Subtract 4 from both sides to get 9x = 153, then divide both sides by 9 to get x = 17.

How do I check the answer?

Replace x by 17: 9(17) + 4 = 157, which is 157.

Similar equations

    Solve 9x + 4 = 157: x = 17 (steps and check) | WordGPT