WordGPT

Solve 7x + 5 = 124

The solution of 7x + 5 = 124 is x = 17.

Explain it step by step in chatMake a short video of it
The lines y = 7x + 5 and y = 124 meet at x = 1712141618202280100120140160x = 17y = 7x + 5y = 124
The lines y = 7x + 5 and y = 124 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.

    7x+5=1247x + 5 = 124
  2. 2

    Subtract 5 from both sides:

    7x+5−5=124−5 ⇒ 7x=1197x + 5 - 5 = 124 - 5 \ \Rightarrow\ 7x = 119
  3. 3

    Divide both sides by 7:

    7x7=1197 ⇒ x=17\frac{7x}{7} = \frac{119}{7} \ \Rightarrow\ x = 17
  4. 4

    Check: put x = 17 back into the equation.

    7⋅17+5=119+5=124✓7\cdot17 + 5 = 119 + 5 = 124 \checkmark
LaTeX source of the formulas on this page
\[ 7x + 5 = 124\ \Rightarrow\ x = 17 \]
\[ 7x + 5 = 124 \]
\[ 7x + 5 - 5 = 124 - 5 \ \Rightarrow\ 7x = 119 \]
\[ \frac{7x}{7} = \frac{119}{7} \ \Rightarrow\ x = 17 \]
\[ 7\cdot17 + 5 = 119 + 5 = 124 \checkmark \]

Trying values of x in 7x + 5 = 124

x7x + 5Equals 124?
15110no
16117no
17124yes
18131no
19138no

Questions

What is x in 7x + 5 = 124?

The solution of 7x + 5 = 124 is x = 17.

How do you solve 7x + 5 = 124?

Subtract 5 from both sides to get 7x = 119, then divide both sides by 7 to get x = 17.

How do I check the answer?

Replace x by 17: 7(17) + 5 = 124, which is 124.

Similar equations

    Solve 7x + 5 = 124: x = 17 (steps and check) | WordGPT