combine like terms 3y becomes negative when moved to the left side being that its positive on the right. 4 has no variable so it stands alone on the right side.
-3y + 5y = 4
After adding a low negative to a high positive number. Turns into 2y.
2y = 4
Divide 2 on both sides to remove the number from the variable on the left.
y =
2 is canceled on the left side which gives the solution for Y.
Jose will know if the value is a solution of the equation if both sides end up equaling the same. For example if the ending result is 5=5 then it is a solution. But if the ending result is 4=5 then it’s not a solution