diketahui sistem persamaan 4x-7y=-26 dan 6x-3y=6.nilai dari 3x+2y adalah..

4x-7y=-26 | x6 | 24x-42y=-156
6x-3y=6 | x4 | 24x-12y=24 -
-30y= 132

y=132/-30 = 66/-15 = 22/-5


4x-7y=-26
4x-7(-22/5) = -26
4x+154/5 = -26
4x = -26 - 154/5
x= -284/5 /4
x=-355

3x+2y
= 3(-355)+ 2(-22/5)
= -1065-44/5
= -5281/5