2. 外语
  3. Solve each of the following systems of equations for x and y. (a)x + y = 24 x-y = 18 (b)3x-y = -5 x + 2y = 3 (c)15x-18-2y = -3x

Solve each of the following systems of equations for x and y. (a)x + y = 24 x-y = 18 (b)3x-y = -5 x + 2y = 3 (c)15x-18-2y = -3x

admin2018-12-14  52
问题 Solve each of the following systems of equations for x and y.
(a)x + y = 24
x-y = 18
(b)3x-y = -5
x + 2y = 3
(c)15x-18-2y = -3x + 7
10x + 7y + 20 = 4x + 2
选项
答案(a)x=21 y=3 (b)x=-1 y=2 (c)x=1/2 y=-3
解析
转载请注明原文地址:https://kaotiyun.com/show/FMkO777K
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)