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Solve 5x + 4 = 74

The solution of 5x + 4 = 74 is x = 14.

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The lines y = 5x + 4 and y = 74 meet at x = 148101214161820405060708090100110x = 14y = 5x + 4y = 74
The lines y = 5x + 4 and y = 74 meet at x = 14. 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.

    5x+4=745x + 4 = 74
  2. 2

    Subtract 4 from both sides:

    5x+4−4=74−4 ⇒ 5x=705x + 4 - 4 = 74 - 4 \ \Rightarrow\ 5x = 70
  3. 3

    Divide both sides by 5:

    5x5=705 ⇒ x=14\frac{5x}{5} = \frac{70}{5} \ \Rightarrow\ x = 14
  4. 4

    Check: put x = 14 back into the equation.

    5⋅14+4=70+4=74✓5\cdot14 + 4 = 70 + 4 = 74 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 4 = 74\ \Rightarrow\ x = 14 \]
\[ 5x + 4 = 74 \]
\[ 5x + 4 - 4 = 74 - 4 \ \Rightarrow\ 5x = 70 \]
\[ \frac{5x}{5} = \frac{70}{5} \ \Rightarrow\ x = 14 \]
\[ 5\cdot14 + 4 = 70 + 4 = 74 \checkmark \]

Trying values of x in 5x + 4 = 74

x5x + 4Equals 74?
1264no
1369no
1474yes
1579no
1684no

Questions

What is x in 5x + 4 = 74?

The solution of 5x + 4 = 74 is x = 14.

How do you solve 5x + 4 = 74?

Subtract 4 from both sides to get 5x = 70, then divide both sides by 5 to get x = 14.

How do I check the answer?

Replace x by 14: 5(14) + 4 = 74, which is 74.

Similar equations

    Solve 5x + 4 = 74: x = 14 (steps and check) | WordGPT