1) x-(37/5)=-(100/7) /+37/5
x=-(500/35)+(259/35)
x=-(241/35)
x=-6,8857143
1) x-7 2/5 = -14 2/7
x = -14 2/7 + 7 2/5
x = -14 10/35 + 7 14/35
x = -6 31/35
2) -12,6 : x = -2 2/3 /*x
-12,6 = -2 2/3 *x / : -2 2/3
-126/10 * - 3/8 = x
378/80 = x
x = 4 58/80
x = 4 29/40
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1) x-(37/5)=-(100/7) /+37/5
x=-(500/35)+(259/35)
x=-(241/35)
x=-6,8857143
1) x-7 2/5 = -14 2/7
x = -14 2/7 + 7 2/5
x = -14 10/35 + 7 14/35
x = -6 31/35
2) -12,6 : x = -2 2/3 /*x
-12,6 = -2 2/3 *x / : -2 2/3
-126/10 * - 3/8 = x
378/80 = x
x = 4 58/80
x = 4 29/40