-y+25=12y-1,
–y–12y=–1–25,
-13y = -26,
y = 2.
10y+6=12y-8,
10y–12y=–8–6,
-2y = -14,
y = 7.
0,8x+1=1,7x+0,1,
0,8x–1,7x=0,1–1
-0.9x = -0.9
x = 1.
12-5(x+1)=7+3x-2x,
–5x–3x+2x=7+5–12,
x = 0.
7(x+3)-2(x-5)=8,
7x–2x=8–10–21,
5x = -23,
x = -4.6.
-y+25=12y-1,
–y–12y=–1–25,
-13y = -26,
y = 2.
10y+6=12y-8,
10y–12y=–8–6,
-2y = -14,
y = 7.
0,8x+1=1,7x+0,1,
0,8x–1,7x=0,1–1
-0.9x = -0.9
x = 1.
12-5(x+1)=7+3x-2x,
–5x–3x+2x=7+5–12,
x = 0.
7(x+3)-2(x-5)=8,
7x–2x=8–10–21,
5x = -23,
x = -4.6.