Реши уравнение с×3=210,с×3=240, 210÷а=30, 240÷а=30, х÷3=70,х÷3=60

Question

Реши уравнение с×3=210,с×3=240, 210÷а=30, 240÷а=30, х÷3=70,х÷3=60

Answer 1

C•3=210
C=210:3
C= 70

C•3=240
C= 80

210:a=30
A= 210:30
A= 7

240:a=30
A= 240:30
A=8

X:3=70
X=70•3
X=210

X:3=60
X= 3•60
X= 180

Answer 2

С×3=210
с=210:3
с=70
70×3=210