Q: What is -2x equals -4x 24?

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-2x = -4x + 24 2x = 24 x = 12

how do you use the substitution method for this problem 2x-3y=-2 4x+y=24

4x - 7 = 2x + 15 4x = 2x +222x = 22x = 11

4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.

2X - 3Y = -2 4X + Y = 24 -2(2X - 3Y = - 2) 4X + Y = 24 - 4X + 6Y = 4 4X + Y = 24 ------------------+ 7Y = 28 Y = 4 ------- insert back into one of the equations ( 4X + Y = 24 will do ) 4X +(4) = 24 4X = 20 X =5 -------- check 2(5) - 3(4) = -2 10 - 12 = -2 -2 = -2 checks I can see by inspection that the other equation checks also

Related questions

-2x = -4x + 24 -2x + 4x = 24 2x = 24 x = 24/2 x = 12

-2x = -4x + 24 2x = 24 x = 12

4x+2y=24 => 2y=24-4x => y=12-2x and the slope is -2

2x + 6 - 6x = 30= 6 - 4x = 30= -4x = 24= 4x = -24= x = -6

how do you use the substitution method for this problem 2x-3y=-2 4x+y=24

4x - 7 = 2x + 15 4x = 2x +222x = 22x = 11

4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.

2X - 3Y = -2 4X + Y = 24 -2(2X - 3Y = - 2) 4X + Y = 24 - 4X + 6Y = 4 4X + Y = 24 ------------------+ 7Y = 28 Y = 4 ------- insert back into one of the equations ( 4X + Y = 24 will do ) 4X +(4) = 24 4X = 20 X =5 -------- check 2(5) - 3(4) = -2 10 - 12 = -2 -2 = -2 checks I can see by inspection that the other equation checks also

10

2x/3 = 8 + 4x2x = 24 + 12x-24 = 10x-2.4 = x

4x - 5 + 2x = 37

2x+17 = 4x-3 2x-4x = -3-17 -2x = -20 Answer: x =10