Question

x+2.8=3.72+0.38 4.1+y=20.3-4.9 z-6.8=8.7+6.4 10-v+4.3=10.7

Answer 1

1)x+2.8=3.72
x=3.72-2.8
x=0.92

2)4.1+y=20.3-4.9
y=20.3-4.9-4.1
y=11.3

3)z-6.8=8.7
z=8.7-6.8
z=1.9

4)10-v+4.3=10.7
-v=10.7-10-4.3
-v=-3.6
v=3.6

Answer 2

х+2.8=3.72+0.38
х+2.8=4.1
х=1.3
4.1+у=20.3-4.9
4.1+у=15.4
у=11.3
z-6.8=8.7+6.4
z-6.8=15.1
z=21.9
10-v+4.3=10.7
14.3-v=10.7
-v=13.6
v=-13.6