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The solution of the system of equations 2x − y = 53x + 4Y = 2 is______ ．
2x − y = 5, 1 3x + 4Y = 2, 2, 1 × 4, 8x-4y = 20, 3, 2 + 3, 11x = 22, the solution is x = 2, substituting x = 2 into 1, 2 × 2-y = 5, the solution is y = - 1, so the solution of the equations is x = 2Y = - 1
(3x-2*5)-(3*5-2x)=5
(3x-2*5)-(3*5-2x)=5
3X-10-15+2X=5
5X-25=5
5X=5+25
5X=30
X=6
(3x+2)(2x-3)=-5
Use the matching method
6x²-9x+4x-6=-5
6x²-5x-1=0
（x-1）（6x+1）=0
X = 1 or x = - 1 / 6
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