Question

+ x ⋅
=
+
+ x ⋅
=
x ⋅
=
–
x ⋅
=
x =
:
x =
______________________________
+
⋅
=
+
Ответ:
кг – масса одного арбуза.
Нашли ошибку в уроке?
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Answer 1

$5 + x \times 3 = 17 + 12 \\ 5 + 3x = 29 \\ 3x = 29 - 5 \\ 3x = 24 \\ x = 24 \div 3 \\ x = 8$