Question

1. five less than twice a number is 7.

Explanation:

Step1: Let the number be $x$.

Twice the number is $2x$. Five less than twice the number is $2x - 5$.

Step2: Set up the equation.

We know that $2x-5 = 7$.

Step3: Solve for $x$.

Add 5 to both sides of the equation: $2x-5 + 5=7 + 5$, which simplifies to $2x=12$.

Step4: Isolate $x$.

Divide both sides by 2: $\frac{2x}{2}=\frac{12}{2}$, so $x = 6$.

Answer:

$6$