30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
It is a linear equation in x. 10x = 7x + 15 3x = 15 x = 5
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
It is: x = 1.2
9
10x + 3 = 15 10x = 15 - 3 10x = 12 x = 1.2
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
It is a linear equation in x. 10x = 7x + 15 3x = 15 x = 5
If: 10x+7 = 5x+22 Then: 10x-5x = 22-7 And: 5x = 15 So: x = 3
5x +12 = -78 -10x +10x +10x 15x +12 = -78 -12 -12 15x = -66 /15 /15 x = 4.4
It is: x = 1.2
9
10x - 5x + 5x = 10x
10x + 41y142x + 2y
-10x -9
-10x + 5x = -5x
3x + 12 + 10x = 13x + 12