x equals 6
5 times 6 equals 30
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
39 = 5x + 9 5x = 39 - 9 5x = 30 x = 30 / 5 x = 6
x=6 y=30
-30
5x - 7 = 23 .....+7....+7 5x=30 --- --- 5.....5 --->(x=6)<---
30 + 5x = 15 + 10x 30 = 15 + 5x 15 = 5x x = 3
39 = 5x + 9 5x = 39 - 9 5x = 30 x = 30 / 5 x = 6
6
X=-4
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
-5x-5=25 -5x=30 x=-6
45
30
Y=29+5x+1 Y=30+5x Y-30=5x X=(Y-30)/5 That's about it...
5x+10=40 5x+10-10=40-10 5x=30 5x/5=30/5 x=6
x=6 y=30
-30