9x+2y=62 4x+3y=36
问题描述:
9x+2y=62 4x+3y=36
答
9x+2y=62 ①
4x+3y=36 ②
由①×3-②×2得19x=114 x=6
将x=6代入①得9×6+2y=62 2y=8 y=4