2.
4x+2=2x-102x=-12 x=-6
4x-10y=11 4x=11+10y 10y+11=4x 10y=4x-11 y=(4/10)x-(11/10) y=(2/5)x-(11/10)
If: y = x -2 and 7y -4x = 10 Then: x = 8 and y = 6
0.4
-5x + 2(4x-10)=10
-5x + 2(4x-10)=10
2 - x > 3x + 102 - x + x > 3x + x + 102 > 4x + 102 - 10 > 4x + 10 - 10-8 > 4x-8/4 > 4x/4-2 > x or x < -2
12 - 4x = 2 4x = 12 - 2 = 10 x = 10/4 = 21/2 or 2.5
-10=2+4x x would= -3 -10=2+4-3
2.
4x-8-2 can be more easily written as 4x-10. The solution to this equation would be 5/2
4x = 10 Original EquationDivide each side by 4x = 10/4SimplifyX = 5/2
-5x + 2(4x-10)=10
-20 = -4x - 6x -20 = -10x -20 / -10 = -10x / -10 2 = x x = 2
4X - 1 = 9 Is an equation. 4X - 1 = 9 4X = 10 X = 5/2 =====
Let the unknown number be X: -4x-10 = 2 -4x = 2+10 -4x = 12 x = -3 Remember that a minus multiplied by a minus is equal to a plus: -4*-3 = 12