Question

Este oare numarul 1pe2 solutia ecuatiei:
a)1.5+x=2;
b)2x-3=-2;
c)(2x+1pe3):4intreg=1pe3
d)7.2:x=3.6?

Answer 1

a)1,5+x=2
x=1.5-2
x=0.5
b)2x-3=-2
2x=-2+-3
2x=-5
x=-5:2
x=-2.5
d)7.2:x=3.6
x=3.6*7.2
x=25.92