Resolver la ecuación (a probar) (1)x+1.3 = 2.63(2)x-4.53×5 = 8.57(3)1.25 x-0.16x =...

(1)X+1.3=2.63,

x+1.3-1.3 = 2.63-1.3,

x = 1.33;

(2)X-4.53 ×5=8,57

x-22,65=8,57,

x-22,65+22,65=8,57+22,65,

x = 31,22;

(3)1.25 x-0.16X = 3.488,

1.09X=3.488,

1.09 x÷1.09 = 3.488÷1.09,

x= 3.2.