3x + 4 = 2x + 12
给出一个方程,解决它并解释步骤
项是指一个方程的不同部分,它们由等或不等号符连接.它们是单数或变量,或是两者的组合.步骤1:将变量的一边的项和没有变量的项放在等号的另一边.我们可以通过从方程的两边减去一个项来实现这一点:从两边减去2x. 3x + 4 = 2x + 12 方程 3x + 4 - 2x = 2x + 12 - 2x x + 4 = 12 简化步骤2:将变量隔离:这样做,你想从变量的一边减去"4"的数字项 (在这种情况下",4"") 脱掉. x 4 + 12 x + 4 - 4 x = 12 - 4 x = 4 x = 4 x = 8 简化步骤3:我们通过将两个边的数值置于原始方程中来实现这一点.查看方程的简化解:如果两个边是等式的,则看 4 x = 4 x x = 8 x = 2 x = 3 x = 2 x = 3 x = 2 x = 3 x = 2 x = 2 x = 3 x = 2 x = 2 x = 3 x = 2 x = 8 x = 3 x = 2 x = 2 x = 3 x = 2 x = 8 x = 3 x = 2 x = 2 x = 8 x = 3 x = 2 x = 8 x = 8 x = 3 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x = 8 x 8 x 8 x = 8 x = 8 x = 8 x = 8 x 8 x 8 x = 8 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x