1.a=126*40
a=504
c:527=90
c=527*90
c=47.430
200*139=b+23.108
b+23.108=200:139
b+23.108=14
b=23.108-14
b=23.094
700*623=d+150.736
d+150.736=700*623
d+150.736=34.000
d=150.736-34.00
d=116.736
2.x=10*7
x=70
x=5*9
x=45
x=7*8
x=56
x=8*7
x=56
x=9*8
x=72
Sa te ajute.
542*400=19.238+f
19.238+f=542*400
19.238=216.800
f=216.800-19.238
f=19*7.662
x=11*8
x=88
astea care le-am adaugat