Math Question: 3x-3y=63

Asked By Carolina On 10/01/2022 02:22

Math Answers

If the goal is to get it to Slope-Intercept Form (y = mx + b), then we want to leave y by itself on one side of the equal sign. So in that case, we want to get rid of everything on the left side of the equal sign except for y.... 3x - 3y = 63 -3x -3x We can first get rid of anything that is not attached to the y. In this case 3x. We cannot just make 3x disappear. We will just move it to the other side of the equal sign. We can move it to the other side of the equal sign by doing opposite operations. 3x is the same as +3x, so the opposite would be -3x. We would do -3x to both sides of the equal sign. - 3y = 63 - 3x 3x - 3x is equal to 0. Now we just have to get rid of the -3 that is attached to the y. -3y is the same thing as -3*y, therefore, is it is being multiplied, we will do the opposite. - 3y = 63 - 3x The opposite of multiply is divide, so we will divide both sides by -3. ___ _______ -3 -3 -3y/-3 becomes y (since -3/-3 = 1) (63 - 3x) /-3 is the same thing as 63/-3 - 3x/-3 y = 63/-3 - 3x/-3 Simplify now. y = -21 +x or y = x -21
Answered On 10/01/2022 03:13