Question

Penyelesaian dari
3(-21+5y/2) + 2y=-3

Answer 1

3(-21+5y/2) + 2y=-3
-63+15y/2+2y=-3
(-126+15y+4y)/2=-3
-126+19y=-6
19y=120
y=120/19
y=6 6/19

Answer 2

3(-21 + 5y / 2) + 2y = - 3
- 63 + 15y  + 2y = -3
       6
------------------------------ dikali 6
-63 + 15y + 12y = - 18
- 63 + 27y = - 18
27y = 45
y = 45/27
y = 5/3

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