Question

40-40x{40+40:[40x40:(40-m x4-140-32}x5=20
{111[-408:(9-5)+260]:3}x a+32=239
7-[5200:13-5x(360-2x b)]:2=2
Aflati m, a si b.
la acestea trei imi trebuie astazi raspunsul am uitat cum se rezolva si acum imi trebuie pana maine va rog scrieti si cum se rezolva pls

Answer 1

7-[5200:13-5×(360-2×b)]:2=2
[400-5×(360-2×b)]:2=7-2=5
[400-5×(360-2×b)]=5×2=10
400-5×(360-2×b)=10
5×(360-2×b)=400-10=390
(360-2×b)=390:5=78
360-2×b=78
2×b=360-78=282
2×b=282
b=282:2
b=141


Gata!Sper ca ti-am fost de ajutor doar cu atat!!!!