Respuesta :
x+23=-22
-23 -23
x=-45
a+(-1.3)=-4.5
or
a-1.3+-4.5
+1.3 +1.3
a=3.2
-23 -23
x=-45
a+(-1.3)=-4.5
or
a-1.3+-4.5
+1.3 +1.3
a=3.2
1 ) x 23 = -22
equals: x = -45
2 ) a + (-1.3) = 4.5
equals: a = -3.2
equals: x = -45
2 ) a + (-1.3) = 4.5
equals: a = -3.2