Final answer:
To solve the equation x + 7 = 4, subtract 7 from both sides to isolate x.
Step-by-step explanation:
To solve the equation x + 7 = 4, we need to isolate x by performing the opposite operation of adding 7. Since 7 is being added to x, we can subtract 7 from both sides of the equation to cancel out the 7 on the left side:
x + 7 - 7 = 4 - 7
x = -3
Therefore, the solution to the equation is x = -3.
Learn more about Solving two-step equations with fractions