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?(1 point)

Question

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?(1 point)

GPT-4o mini · Answer

To rewrite the equation $ a = 10b - 7 $ in terms of $ b $, Arthur can first isolate the term involving $ b $. The first step would involve eliminating the $-7$ on the right side of the equation. To do this, he should add $ 7 $ to both sides of the equation. Adding $ 7 $ gives: $$ a + 7 = 10b $$ So, in Arthur's first step, he should add $ 7 $ to both sides of the equation.