1. 5y-4y=21-27
y=-6
2. 7y-10y=16+11
-3y=27
y=-9
3. 0.6x-0.3x=-1.3-5.6
0.3x=-6.9
x=23
4. -1.4x+4x=5 3/7-3/7
2.6x=5
x=5/2.6
1. 5y - 4y=21-27y=-62.7y-10y=16+11-3y=27y=27/-3y=9
1. 5y-4y=21-27
y=-6
2. 7y-10y=16+11
-3y=27
y=-9
3. 0.6x-0.3x=-1.3-5.6
0.3x=-6.9
x=23
4. -1.4x+4x=5 3/7-3/7
2.6x=5
x=5/2.6
1. 5y - 4y=21-27
y=-6
2.
7y-10y=16+11
-3y=27
y=27/-3
y=9