6+2y=8 -6 -6 2y=2 /2 /2 y=1
are those two different problems ? ... i am going to solve them as if they are 14x-2y=78 (re arange the terms to be easily solved) -2y=78-14x (times by -1) 2y= -78+14x (divide all terms by 2) y=-39+7x (so) y=7x-39 2x-2y=6 (re arange the terms to be easily solved) -2y=6-2x (times by -1) 2y=2x-6 (divide all terms by 2) y=x-6
5
3x-2y=6 -2y=-3x+6 y=1.5x-3
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2
6+2y=8 -6 -6 2y=2 /2 /2 y=1
wat does 2y-3x-6 equal
5x = 5 times 9, 2y = 2 times 4 so 45 - 8 ie 37
are those two different problems ? ... i am going to solve them as if they are 14x-2y=78 (re arange the terms to be easily solved) -2y=78-14x (times by -1) 2y= -78+14x (divide all terms by 2) y=-39+7x (so) y=7x-39 2x-2y=6 (re arange the terms to be easily solved) -2y=6-2x (times by -1) 2y=2x-6 (divide all terms by 2) y=x-6
When you see "y times 2," it means you are multiplying the variable y by the number 2. So the expression "y times 2" can be written as 2y. This is a simple algebraic expression where the coefficient of y is 2.
5
3x-2y=6 -2y=-3x+6 y=1.5x-3
4y+2 = 2y+6 4y-2y = 6-2 2y = 4 y = 2
2y
x = 5 x-2y = 6 => x = 6+2y 6+2y = 5 2y = 5-6 2y = -1 y = -1/2 and x = 5 Point of intersection: (5, -1/2)
Yes. It is like having a-b, which is a+(-b), which is -b+a, so 3-2y = 3+(-2y) = -2y+3
If 3y = 12, 2y = 8