9x-10y=-122x+3y=13Solve by substituting method

1.	9x-10y=-122x+3y=13Solve by substituting method
Answer» 9x - 10y = - 12X = ( 10y - 12)÷92 ( 10y - 12)/9 + 3y = 1347y - 24 = 11747y = 141Y = 3X = ( 10 × 3 - 12)÷9 = 2

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