题目下列说法正确的有（ ）(1)(1)(1)若ac=bcac=bcac=bc,则a=ba=ba=b；(2)(2)(2)若ac=b−c\frac{a}{c}=\frac{b}{-c}ca=−cb,则a=−ba=-ba=−b；(3)(3)(3)若x2=y2x^{2}=y^{2}x2=y2,则−4ax2=−4by2-4ax^{2}=-4by^{2}−4ax2=−4by2；(4)(4)(4)若方程2x+5a=11−x2x+5a=11-x2x+5a=11−x与6x+3a=226x+3a=226x+3a=22的解相同,则aaa的值为000.A.444B.333C.222D.111知识点：等式的性质章节：方程与不等式 / 一元一次方程
