解答
解答
求解步骤
Translate the problem into an equation:
流行的例子
The sum of 13 and twice a number is-19:Fin the number."The 差集 between a number and 7 is greater than-23."When a number is added to both the numerator and denominator of 1/4 the result is 2/3The 面积 of a rectangular pool is 3162m^2.If the length of the pool is 62m , what is its width?The sum of two numbers is 20 , and the 差集 between their squares is 40:Find the two numbers.