Question

6道解方程，我很急，快点

26.4x+18x=66.6 0.5×6+3x=4.8 2.5x-6=18.5 x-12.56=15.7 3.6+5.4x=27
3.6×5-0.5x=8.5

Answer 1

26.4x+18x=66.6
解：
44.4x=66.6
x=66.6÷44.4
x=1.5

0.5×6+3x=4.8
解：
3+3x=4.8
3x=4.8-3
3x=1.8
x=1.8÷3
x=0.6

2.5x-6=18.5
解：
2.5x=18.5+6
2.5x=24.5
x=24.5÷2.5
x=9.8

x-12.56=15.7
解：
x=15.7+12.56
x=28.26

3.6+5.4x=27
解：
5.4x=27-3.6
5.4x=23.4
x=23.4÷5.4
x=13/3

3.6×5-0.5x=8.5
解：
18-0.5x=8.5
0.5x=18-8.5
0.5x=9.5
x=9.5÷0.5
x=19

Answer 2

1，26.4x+18x=66.6
化简得4X=6
解得X=1.5
2，0.5×6+3x=4.8
化简得30X=18
解得X=0.6
3，2.5x-6=18.5
化简得5X=49
解得X=9.8
4，x-12.56=15.7
化简得X=12.56+15.7=28.26
5, 3.6+5.4x=27
化简得54X=234
解得X≈4.3
6，3.6×5-0.5x=8.5
化简得36-X=17
解得X=19

Answer 3

26.4x+18x=66.6
44.4x=66.6
x=1.5

0.5×6+3x=4.8
3+3x=4.8
3x=4.8-3
3x=1.8
x=0.6

2.5x-6=18.5
2.5x=6+18.5
2.5x=24.5
x=9.8

x-12.56=15.7
x=12.56+15.7
x=28.26

3.6+5.4x=27
5.4x=27-3.6
5.4x=23.4
x=13/3

3.6×5-0.5x=8.5
18-0.5x=8.5
0.5x=18-8.5
0.5x=9.5
x=19

Answer 4

26.4x+18x=66.6
44.4x=66.6
x=1.5
0.5×6+3x=4.8
3x=1.8
x=0.6
2.5x-6=18.5
2.5x=24.5
x=9.8
x-12.56=15.7
x=28.26
3.6+5.4x=27
5.4x=23.4
x=4.33333
3.6×5-0.5x=8.5
9.5=0.5x
x=19

Answer 5

乖，自己算。这个都要求人的话数学你不用学了。