If: 4x = 5y
Then: x = 5y/4
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4X - 5Y = - 2- 5Y = - 4X - 2Y = (4/5)X + 2/5m(slope) = 4/5==================
(-1, 2)
- X + 5Y - 4X + 7 gather terms - X - 4X ( same as - X + (- 4X ) 5Y 7 = - 5X + 5Y + 7 ----------------
Presumably this is a simultaneous equation question in the form of: 4x-y = 32 4x+5y = -16 Subtract the bottom equation from the top equation remembering that a -- is equal to a + so 32--16 is +40 and that -+5y-y is -6y: -6y = 48 Divide both sides by -6 to find the value of y: y = -8 Substitute the value of y into the original equations to find the value of x: So: x = 6 and y = -8
4x=22.4 what is the value of x