问题
解答题
解方程:
2x-3.4=7.2
2.4x+1.6x=2.2.
答案
2x-3.4=7.2,
2x=7.2+3.4,
x=10.6÷2,
x=5.3;
2.4x+1.6x=2.2,
4x=2.2,
x=2.2÷4,
x=0.55.
解方程:
2x-3.4=7.2
2.4x+1.6x=2.2.
2x-3.4=7.2,
2x=7.2+3.4,
x=10.6÷2,
x=5.3;
2.4x+1.6x=2.2,
4x=2.2,
x=2.2÷4,
x=0.55.