Mathematics
Junior High
Solved
分かる方いますか 、
13
fro
x, y についての2つの連立方程式
[3x - 4y = 18
3ax-by=18
lax+5y=-7
|2c-5y=19
の解が一致するとき,x,y, a, b の値を求めなさい。 (3点)
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