y=2x-3 y=-x-3
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4
4x+3y-2x+y 4x-2x+3y+y 2x+4y Taking out 2 common 2(x+2y) Hence the required answer is 2(x+2y)
7
2x + 4 = y ...............2x + 4 = y ....................2x + 4 = y .............2*(-6)+ 4 = y x - y = 2 .......<=> ...x - 2x - 4 = 2 .....<=> ...x = -6......... <=>.... x = -6 ..............<=> y = - 8 x = - 6
Points: (-4, 50 and (1, -5) Slope: -2 Equation works out as: y = -2x-3 Therefore it is C if you meant: y = -2x-3