Question

Sa se rezolve ecuațiile:
X+2=7
X -4=-8
X+127=181
5-x=-2
3x+2x=12-x
X-2=4
X-6=1
X+19=202
10+x=-9x
-X-(2-x)=x

Answer 1

X+2=7
x=7-2
x=5

X -4=-8
x=-8+4
x=-4

X+127=181
x=181-127
x=54

5-x=-2
x=5+2=7

3x+2x=12-x
5x+x=12
6x=12
x=12:6
x=2

X-2=4
x=4+2
x=6

X-6=1
x=1+6
x=7

X+19=202
x=202-19
x=183

10+x=-9x
-10x=10
x=-10:10
x=-1

-X-(2-x)=x
-x+x-x=2
-x=2
x=-2

Answer 2

a)x=7-2=5
b)x=-8+4=-4
c)x=181-127=54
d)-x=-2-5 -x=-10/(*-1) x=10
e)5x=12-x 6x=12/÷6 x=6
f)x=4+2=6
g)x=1+6=7
h)x=202-19=183
i)10=-10x x=-x
j)-x-2+x=x x=-2