Answer and Step-by-step explanation:
<u>Sandrea solved for </u><em><u>b</u></em><u> correctly.</u>
Both are given the equation 4a - 5b = 7
<u>To solve, we have to get b by itself, so first we subtract 4a from both sides of the equation.</u>
(4a - 5b) - 4a = (7) - 4a
-5b = 7 - 4a
<u>Now we divide both sides of the equation by -5.</u>
<u><- That is your final answer.</u>
Fernando got rid of the negative when subtracting 4a from both sides of the equation.
<em><u>#teamtrees #PAW (Plant And Water)</u></em>
<em><u>I hope this helps!</u></em>