5-x equals 7 = -2
If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7
4x-7=5x-2 x=-5
5x - 7 = 23 .....+7....+7 5x=30 --- --- 5.....5 --->(x=6)<---
-6x+3 = -7-5x 7+3 = 6x-5x 10=x
10x+7 = 5x+32 10x-5x = 32-7 5x = 25 x = 5
3x - 7 = 5x + 133x - 5x = 13 + 7-2x = 20x = -10x=-3
5x + 7 = 4subtract 7 from both sides5x = -3divide both sides by 5x = -3/5
It is: y = -1/5x+7 that is perpendicular to y = 5x+7
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
3x + 2 + 2x = 7; 3x + 2x = 5x, so 5x + 2 = 7; 7-2=5, so 5x=5. 5x divided by 5 and 5 divided by 5 equals 1, so x equals 1.
3x+7=5x-13 ----> 3x-5x=-13-7 ----> -2x=-6 -----> x=3
-7+11x = 9-5x 11x+5x = 9+7 16x = 16 x = 1