设甲盒子个数为x, 乙盒子个数为y
x+2y = 150 ------ (1)
4x + 3y = 300 ------ (2)
(1)×4-(2) 得:
5y = 300
y = 60 (个)------ 代入(1)得:
x = 150-2×60
=30 (个)
答:做成甲盒子60个,乙盒子30个.
设甲盒子个数为x, 乙盒子个数为y
x+2y = 150 ------ (1)
4x + 3y = 300 ------ (2)
(1)×4-(2) 得:
5y = 300
y = 60 (个)------ 代入(1)得:
x = 150-2×60
=30 (个)
答:做成甲盒子60个,乙盒子30个.