10.8
7x53=371
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!
All we have to do is subtract the coefficients of the x terms. The solution is -4x.
There is none because it's not an equation
10.8
9x+6=51 9x = 45 x= 5 9x-6=51 9x = 57 x= 6.33
7x53=371
9x - 9 = 36 9x = 45 x = 5
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!
-9x = 27 x = -3 The solution set contains only one value for x, -3, which is just a point on the number line 3 units to the left of zero.
All we have to do is subtract the coefficients of the x terms. The solution is -4x.
1 SOLUTION
There is none because it's not an equation
Presumably this is a quadratic equation question asking you to find the solution of 2x2+9x-5 = 0 First factorise the expression in the equation in order to find its solution. (2x-1)(x+5) = 0 Solution: x = 1/2 or x = -5
All we have to do is subtract the coefficients of the x terms. The solution is -4x.
(9 of anything) plus (8 of the same thing) = 17 of them