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The solution set is the set of ordered pairs (x,y) that satisfy the equation y = -2x - 8. Thus the solution set comprises the points (x, -2x-8).
In the Cartesian plane, this would appear as a line with gradient -2 and y-intercept of -8.
2x = 8 Divide both sides by 2: x = 4 So, the solution set is {4}
2x - 3 - 8 = 1. 2x - 11 = 1. 2x = 12.x = 6!
2x + 4 is an expression, not an equation. There can be no solution set for an expression.
If you mean: -2x+8+20 then it can be simplified to 28-2x
No. If that's -2x + 7 = -9 -2x = -16 x = 8