2.8x=19.32-6.4x解方程,写在本子上,
问题描述:
2.8x=19.32-6.4x解方程,写在本子上,
答
2.8x+6.4x=19.32
9.2x=19.32
x=2.1
2.8x=19.32-6.4x解方程,写在本子上,
2.8x+6.4x=19.32
9.2x=19.32
x=2.1