-2
The two inequalities define a region of the coordinate plane: there is no unique solution.
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
When y is less than or equal to 2x-6
-2 - 2x is greater than or equal to 6 only if x is less than or equal to -4.
It is an inequality in x.
The two inequalities define a region of the coordinate plane: there is no unique solution.
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
When y is less than or equal to 2x-6
-2 - 2x is greater than or equal to 6 only if x is less than or equal to -4.
x is less than or equal to 6
2x + 1 is equal to or less than 13.
It is an inequality in x.
x > -3
x < 4
To solve the equation "twice the number plus seven is equal to three less than four times the number," we can express it mathematically as ( 2x + 7 = 4x - 3 ). By rearranging the equation, we get ( 7 + 3 = 4x - 2x ), leading to ( 10 = 2x ). Dividing both sides by 2 gives ( x = 5 ). Thus, the number is 5.
2x+3<7 2x<7-3 2x<4 x<2
It can't be solved because the discriminant of this quadratic equation is less than zero