Mathematics
Junior High
Resolved

数学です。写真の問題でなんでこうなるんですか?どう計算したらこうなるんですか?

775 = (1-0.4)x+(-0.5+1. =0.6x+0.7y 3a-2a+b 3 _a+b 3 (124 1625 =4x-x+2-3a = x²+3x+1

Answers

Were you able to resolve your confusion?