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X plus 7x plus 3y - y?
x+7x+3y-y =8x+2y =2(4x+y)
What is 4x plus 3y equals -2 x-y equals -4?
1. 4x + 3y = -22. x - y = -4Multiplying 2. by 3 gives: (we have done this so that we end up with a -3y)3. 3x - 3y = -121. added to 3. gives: (now, by adding, the 3y & -3y will cancel out)4. 7x = -14 (the 4x + the 3x gives 7x, the y's cancel out, -2 + -12 gives -14)thus x = -14/7x = -2Substituting x = -2 into 1. gives(4 * -2) + 3y = -2-8 + 3y = -23y = -2 + 83y = 6y = 2Thus x = -2 and y = 2.
Simplify 2x plus 6 2y plus 3y?
-4(7x-3y-z)-(-6)(9x-z+2)
7x plus 2 equals 5.6 solve x?
7x + 2 = 5,6
What is x in this equation x plus 7x - 2 plus x plus 7x -2 equals 60?
X=4.2666666666667
X plus 7x plus 3y - y?
x+7x+3y-y =8x+2y =2(4x+y)
7x plus 3y equals fourteen and 5x plus 9y equals ten What is the value of x and y?
7x + 3y = 14 5x + 9y = 10 __________ (subtract bottom from top) 2x -6y = 4, therefore 2x = 4 + 6y, therefore x = 2 + 3y Insert x = 2 + 3y into the original equation and calculate 7(2 + 3y) +3y = 14 14 + 21y +3y = 14 24y = 0 y = 0 If y= 0, then x = 2 FINAL ANSWER!
What does 14x-2y plus 7x-3y plus -3x equal to?
(14x-2y)+(7x-3y)+(-3x) = 14x-2y+7x-3y-3x =(14+7-3)x-(2+3)y =18x-5y
What is 4x plus 3y equals -2 x-y equals -4?
1. 4x + 3y = -22. x - y = -4Multiplying 2. by 3 gives: (we have done this so that we end up with a -3y)3. 3x - 3y = -121. added to 3. gives: (now, by adding, the 3y & -3y will cancel out)4. 7x = -14 (the 4x + the 3x gives 7x, the y's cancel out, -2 + -12 gives -14)thus x = -14/7x = -2Substituting x = -2 into 1. gives(4 * -2) + 3y = -2-8 + 3y = -23y = -2 + 83y = 6y = 2Thus x = -2 and y = 2.
Simplify the algebraic expression 7x squared minus 4y plus 3x squared plus 5y plus 2 and evaluate it for x equals 3 and y equals 9?
7(3y-2)-(-4y+9)
What is 5x - 3y -7x plus 2y plus 3x?
5x - 3y -7x + 2y +3x = (5-7+3)x + (-3+2)y = x - y
How do you solve 5X plus y equals -12 7X -3y equals -30 by elimination method?
(1) 5x+y=-12 (2) 7x-3y=-30 From (1) one gets y = -12-5x Put into (2) 7x-3y = 7x -3 (-12-5x) = 7x + 36 +15 x = 22x +36=-30 22x = -30-36 = -66 so x = -3 and y=-12-5x = -12-5x-3= 3 The solution is (-3,3)
Simplify 2x plus 6 2y plus 3y?
-4(7x-3y-z)-(-6)(9x-z+2)
7x plus 2 equals 6x plus 2?
7x + 2 = 6x + 2 if and only x = 0.
7x plus 2 equals 5.6 solve x?
7x + 2 = 5,6
What is x in this equation x plus 7x - 2 plus x plus 7x -2 equals 60?
X=4.2666666666667
Simplify 5x plus 2x-3y plus y?
5x+2x-3y+y = (5+2)x+(-3+1)y = 7x - 2y
