5272道题目5525 条题源记录 · 相同内容已合并
一元一次方程与代数求值挑战
In 7 days, a polar bear ate 31.5 pounds of fat. Which equation describes the amount of fat y, in pounds, the polar bear ate in these 7 days?
原库参考解析
一元一次方程与代数求值挑战
If \( 16−5(3−7x)=4−6(3−7x), \)what is the value of \( 3−7x \) ?
原库参考解析
一元一次方程与代数求值进阶
A line segment that has a length of 113 centimeters (cm) is divided into three parts. One part is 47 cm long. The other two parts have lengths that are equal to each other. What is the length, in cm, of one of the other two parts of equal length?
原库参考解析
一元一次方程与代数求值进阶
The expression \( 7x^6+9x^6-8x^6 \) is equivalent to \( bx^6 \), where b is a constant. What is the value of b?
原库参考解析
一元一次方程与代数求值挑战
If \( 2\left(4-5x\right)+7\left(4-5x\right)+9=8\left(4-5x\right)+6 \), what is the value of\( 5x−4 \)?
原库参考解析
一元一次方程与代数求值挑战
Which expression is equivalent to \( 15\left(x+10\right) \)?
原库参考解析
一元一次方程与代数求值挑战
In 5 days, a polar bear ate 22.0 pounds of fat. Which equation describes the amount of fat y, in pounds, the polar bear ate in these 5 days?
原库参考解析
一元一次方程与代数求值进阶
If \( 7+x=3 \) , what is the value of \( 56+8x \) ?
原库参考解析
一元一次方程与代数求值进阶
The expression \( 19x^5+20x^5-10x^5 \) is equivalent to \( bx^5 \), where b is a constant. What is the value of b?
原库参考解析
一元一次方程与代数求值进阶
If\( 3\left(2-7x\right)+5\left(2-7x\right)+6=7\left(2-7x\right)+2 \), what is the value of \( 7x−2 \) ?
原库参考解析
一元一次方程与代数求值进阶
\( n=\frac{p}{23v} \)
The given equation relates the positive numbers n, p, and v. Which equation correctly expresses p in terms of n and v?
原库参考解析
一元一次方程与代数求值进阶
A line segment that has a length of 125 centimeters (cm) is divided into three parts. One part is 49 cm long. The other two parts have lengths that are equal to each other. What is the length, in cm, of one of the other two parts of equal length?
原库参考解析
