Arthur writes the equation a=10b−7 . He wants to rewrite it in terms of b . In Arthur’s first step, what value should he add to both sides of the equation?

Answer 1

To rewrite the equation \( a = 10b - 7 \) in terms of \( b \), Arthur needs to isolate \( b \).

In his first step, he should add \( 7 \) to both sides of the equation. This gives:

\[ a + 7 = 10b \]

This step allows him to eliminate the \( -7 \) from the right side, making it easier to isolate \( b \) in subsequent steps.

Answer 2

whats the answer

Answer 3

The value Arthur should add to both sides of the equation is 7.