2×4+(X-2)×2+4= 6+(X-1)×4-12 求x的值和方程过程!
问题描述:
2×4+(X-2)×2+4= 6+(X-1)×4-12 求x的值和方程过程!
答
8+2x-4+4=6+4x-4-12
2x=8+12-6+4
2x=18
x=9