Samuel is solving an equation for y . His first step is to add 7 to both sides. Which equation is he solving?(1 point)Responses
A:2y-15=7
B:2y+7=15
C:2y-7=15
D:2y+15=7
The equation Samuel is solving is D: 2y + 15 = 7.
The equation Samuel is solving is: C: 2y - 7 = 15
To solve for y, Samuel is adding 7 to both sides of the equation. This means he is starting with an equation in the form of "some expression involving y" plus 7 on one side, and some other expression on the other side of the equation.
Looking at the given options:
A: 2y - 15 = 7
B: 2y + 7 = 15
C: 2y - 7 = 15
D: 2y + 15 = 7
By comparing the options with what was mentioned earlier, we can see that option B matches the form Samuel is using to solve for y. In this case, Samuel is solving the equation 2y + 7 = 15. Therefore, the correct answer is B.