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9
9y-11=7 +11 +11 9y=18 y=2
9y - 18 = 3y subtract 3y from both sides 6y - 18 = 0 add 18 to both sides 6y = 18 divide by 6 on both sides y = 3
9y + 10 = - 8 subtract 10 from both sides 9y = -18 Divide by 9 on both sides y = -2
x + y = 16 so x = 16 - y 10y + x = 10x + y - 18 9y = 9x - 18 ie 9y = 144 - 9y - 18 ie 18y = 126: y = 7 so original number was 79
9
9y-11=7 +11 +11 9y=18 y=2
The GCF is 9.
x - 9y = 18At the x-intercept, y=0 :x = 18At the y-intercept, x=0 :-9y = 18-y = 2y = -2
9y - 18 = 3y subtract 3y from both sides 6y - 18 = 0 add 18 to both sides 6y = 18 divide by 6 on both sides y = 3
Answer: The x-intercept of the line is -6 and the y-intercept of the line is 2. Solution: The x-intercept of a line is the x-coordinate of a point where the line intersects the x-axis. Solve for this by substituting y = 0. -3x + 9y = 18 -3x + 9(0) = 18 -3x = 18 x = 18/-3 x = -6 The y-intercept of a line is the y-coordinate of a point where the line intersects the y-axis. Solve for this by substituting x = 0. -3x + 9y = 18 -3(0) + 9y = 18 9y = 18 y = 18/9 y = 2
12y+3=9y-15 3y=-18 y=-6
9y + 10 = - 8 subtract 10 from both sides 9y = -18 Divide by 9 on both sides y = -2
The GCF is 9y^2.
x=9 y=1
If you mean: -4.5x+9y = 18 then it is a straight line equation
x + y = 16 so x = 16 - y 10y + x = 10x + y - 18 9y = 9x - 18 ie 9y = 144 - 9y - 18 ie 18y = 126: y = 7 so original number was 79