WordGPT

Solve 7x + 15 = 148

The solution of 7x + 15 = 148 is x = 19.

Explain it step by step in chatMake a short video of it
The lines y = 7x + 15 and y = 148 meet at x = 19141618202224100120140160180x = 19y = 7x + 15y = 148
The lines y = 7x + 15 and y = 148 meet at x = 19. 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+15=1487x + 15 = 148
  2. 2

    Subtract 15 from both sides:

    7x+15−15=148−15 ⇒ 7x=1337x + 15 - 15 = 148 - 15 \ \Rightarrow\ 7x = 133
  3. 3

    Divide both sides by 7:

    7x7=1337 ⇒ x=19\frac{7x}{7} = \frac{133}{7} \ \Rightarrow\ x = 19
  4. 4

    Check: put x = 19 back into the equation.

    7⋅19+15=133+15=148✓7\cdot19 + 15 = 133 + 15 = 148 \checkmark
LaTeX source of the formulas on this page
\[ 7x + 15 = 148\ \Rightarrow\ x = 19 \]
\[ 7x + 15 = 148 \]
\[ 7x + 15 - 15 = 148 - 15 \ \Rightarrow\ 7x = 133 \]
\[ \frac{7x}{7} = \frac{133}{7} \ \Rightarrow\ x = 19 \]
\[ 7\cdot19 + 15 = 133 + 15 = 148 \checkmark \]

Trying values of x in 7x + 15 = 148

x7x + 15Equals 148?
17134no
18141no
19148yes
20155no
21162no

Questions

What is x in 7x + 15 = 148?

The solution of 7x + 15 = 148 is x = 19.

How do you solve 7x + 15 = 148?

Subtract 15 from both sides to get 7x = 133, then divide both sides by 7 to get x = 19.

How do I check the answer?

Replace x by 19: 7(19) + 15 = 148, which is 148.

Similar equations

    Solve 7x + 15 = 148: x = 19 (steps and check) | WordGPT