两道简单的解方程！~

X-（60+65）= 1/4X-5
X-125 = 1/4X-5
4X-125 = X-5
4X-X = -5+125
3X = 120
X = 40

X-2.6 = （1-X）-10
X-2.6 = 1-X-10
X+X = 1-10+2.6
2X = -6.4
X = -3.2

原式=x-1/4x=60+65-5
=3/4x=120
x=160

2.原式=x-(1-x)=2.6-10
=2x-1=-7.4
=2x=-6.4
x=-3.2

x-(60+65)=1/4x-5
解 x-125 =1/4x-5
x =1/4x-5+125
x-1/4x=125-5
3/4x=120
x=120÷3/4
x=140

楼主,请检查第二道!!!!!!

x-(60+65)=1/4x-5
x-125=1/4x-5
3/4x=120
x=160

x-2.6=(1-x)-10
x-2.6=1-x-10
2x=-6.4
x=-3.2

解：x-(60+65)=1/4x-5
x-125=1/4x-5
x-125+5=1/4x
x-120=1/4x
3/4x=120
x=160
解: x-2.6=(1-x)-10
x-2.6+10=1-x
1-2x=7.4
2x=-6.4
x=-3.2

x-(60+65)=1/4x-5