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3x + 6y = 5
-6x + 9y = 4 multiply by 2 the first equation
2(3x + 6y = 5)
-6x + 9y = 4
6x + 12y = 10
-6x + 9y = 4 add both equations
21y = 14 divide by 21 to both sides
y = 14/21 simplify
y = 2/3
3x + 6y = 5 replace 2/3 with x
3(2/3) + 6y = 5
2 + 6y = 5 subtract 2 to both sides
6y = 3 divide by 6 to both sides
y = 1/2
Thus, the solution point is (1/2, 2/3).
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What is 3x plus 6y plus 6x?
Well, darling, 3x plus 6y plus 6x simplifies to 9x + 6y. That's all there is to it, sugar. Math doesn't have to be complicated, just like your love life!
Solve the system of equations 3x - 6y equals 30 y equals -6x plus 34?
x = 6 and y = -2
How many values of x and y satisfy the equations 2x plus 6y equals 12 and 3x plus 9y equals 18?
2X + 6Y = 12 3X + 9Y = 18 try elimination - 3(2X + 6Y = 12) 2(3X + 9Y = 18) - 6X - 18Y = - 36 6X + 18Y = 36 ================= I will say this system is dependent and an infinite number of solutions can be found.
What is 6x plus 3y plus 6y-2x?
6x + 3y + 6y - 2x = (6x - 2x) + (3y + 6y) = 4x + 9y
Solve for y -3x plus 6y equals 12?
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
