Question

решите уравнения
(c-120)*70=280; ×÷(160÷8)=105; y+127=72782÷241; c+12*7=12*7;×÷(160÷8)=0; y+(127-127)=72782÷241.

Answer 1

(c-120)*70=280;
70с-8400=280
70с=8400+280=8680
с=8680:70=124

×÷(160÷8)=105;
х:20=105
х=105*20
х=2100

y+127=72782÷241;
у=302-127
у=175

c+12*7=12*7;
с=0

×÷(160÷8)=0;
х=0

y+(127-127)=72782÷241.
у=302