解:(1)去括號(hào)得4x-60+3x=3,
移項(xiàng)得4x+3x=3+60,
合并得7x=63,
系數(shù)化為1得x=9;
(2)去分母得68x-17(2x+1)=4(10x+1)-68,
去括號(hào)得68x-34x-17=40x+4-68,
移項(xiàng)得68x-34x-40x=4-68+17,
合并得-6x=-47,
系數(shù)化為1得x=
.
分析:(1)先去括號(hào),再移項(xiàng)得到移項(xiàng)得4x+3x=3+60,然后合并、把x的系數(shù)化為1即可;
(2)方程兩邊都乘以68得到68x-17(2x+1)=4(10x+1)-68,再去括號(hào)得68x-34x-17=40x+4-68,然后合并得到合并得-6x=-47,最后把x的系數(shù)化為1即可.
點(diǎn)評(píng):本題考查了解一元一次方程:先去分母或去括號(hào),再移項(xiàng)(把含未知數(shù)的項(xiàng)移到方程左邊,常數(shù)項(xiàng)移到方程左邊),然后合并同類項(xiàng),再把未知數(shù)的系數(shù)化為1即得一元一次方程的解.