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
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!
x = 5
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
2x 4 10 is not an equation.
No. If that's -2x + 7 = -9 -2x = -16 x = 8
9x + 2x + 26 is an expression, not an equation (or inequality). It therefore cannot have a solution so that its solution set is the null set. There is nothing in the solution set - no integers, rationals, irrationals: nothing!
2.52x = 8 Taking (natural) logs: 2x*ln(2.5) = ln(8) so 2x = ln(8)/ln(2.5) = 2.0794/0.9163 = 2.2694 approx. and therefore, x = 2.2694/2 = 1.1347 approx.
(-4,6)
If you mean: y = -8 and y = -2x-12 then the solution is x = -2 and y = -8
2x-6=7, x=?