Question

a) a-(189+43×27-9×8×4)+327×28=11.002

b) (19+7×a)×8:5+85=261

Answer 1

a). a-(184+70-288)+9.156=11.002
a-(254-288)+9.156=11.002
a-(-34) +9.156=11.002
a+9.190=11.002
a=11.002-9.190
a=1.812

b). (19+7a)×1,6+85=261
7a +30,4 +85=261
7a+115,4=261
7a=261-115,4
7a=145,6
a=145,6÷7
a=20,8
sper ca ti-am fost de ajutor...

Answer 2

a). a-(189+43*27-9*8*4)
=11002-9156
a-(189+1161-288)=1846
a-1062=1846
a=1846+1062
a=2908

b). (19+7*a)*8:5=261-85
19+7*a=176*5:8
7*a=880:8-19
7*a=110-19
a=91:7
a=13