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Can you explain how to do 6x - 3y 30 and 4x 2 - y then find x y?
6x-3y=30 4x=2-y There are many ways to find the values of x and y. elimination substitution matrices on and on... Here's one. Set them both equal to y y=2x-10 y=2-4x So the right sides are both equal to y, therefore, they are equal to each other. 2x-10 = 2-4x 6x=12 x=2 plug 2 in for x on one of the equations y=2-4x y=2-4(2) y=-6
What is the answer to 4x plus 6x equals 30?
4x+6x=30 is the same as: 10x=30 so we divide by 10 and get: x=3 (I do not see how this relates to calculus, but O.K.)
What is the answer for 9X 5Y - 3X - 8Y?
6x - 3y
4x plus 6 equals 6x - 12?
4x + 6 = 6x - 12-4x -4x6 = 2x - 12+12 +1218 = 2xx=9
How do you work out 2x - 3 - 6x?
2x -3 - 6x = 0 -3 = 6x - 2x -3 = 4x x = -3/4
