Question

-①4.1x+221.4=4.25x+216 ②43-2(5+3)=3+6(x-1) ③27=x2[19+(20-x)] ④3（3x-2）=10-0.5（x+3.5）

5. 4x+6=22-12x 6. 5.5x+21-x=50-4.5x-11 7. 2(3x-4)+7(4-x)=4x 8. 19x-3(5x-3)=73 9. 40-3x=52-6x 10. 28-(7+5x)=4+2(2+4x)
以上10题要写出解答过程

Answer 1

4.1x+221.4=4.25x+216
0.15x=5.4
x=3.6
②43-2(5+3)=3+6(x-1)
27=6x-3
x=5