5x-7 / 6 + 1 = 2x-1 / 4

5x-7 / 6 + 1 = 2x-1 / 4


6 (5x-7) + 1 = 4 (2x-1)
2(5X-7)+12=3(2X-1)
10X-14+12=6X -3
4X=-1
X=-1/4



5x + 597.6-7.2x = 228 calculation


It's an equation,
5x+597.6-7.2x=228
597.6-2.2x=228
2.2x=369.6
x=168



Given that the equations MX + 3NY = 1,5x = 0 and 2x-y = 5, x + y + M = 0 have the same solution, then Mn =?


x=0
y=-5
m=5
n=-1/15
mn=-1/3
Since there are the same solutions, four equations can be arbitrarily combined to solve them separately