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进阶
If 5x = 9, what is the value of 20x?
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一元一次方程与代数求值进阶
Which expression is equivalent to\( (x^{3}+9x^{2}−8x)+5(x^{2}+8) \) ?
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一元一次方程与代数求值进阶
\( 3x-2y=-18 \)
For the given equation, which table gives three values of x and their corresponding values of y?
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一元一次方程与代数求值挑战
\( \frac{1}{3}\left(x+7\right)-\frac{1}{2}\left(x+7\right)=-8 \)
What value of x is the solution to the given equation?
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一元一次方程与代数求值进阶
If \( 3x+4=10 \) , what is the value of \( 9x−4? \)
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一元一次方程与代数求值挑战
If \( \frac{x-5}{4}=\frac{x-5}{13} \), the value of \( x−5 \) is between which of the following pairs of values?
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一元一次方程与代数求值挑战
If \( a=4k+6r \)and \( b=7k-11r+3 \), which expression is equivalent to \( a−b? \)
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一元一次方程与代数求值进阶
If \( 4\left(x+3\right)=3\left(x+3\right)+59 \), what is the value of \( x+3 \)?
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一元一次方程与代数求值进阶
\( 9x-8x+120=240 \)
What value of x is the solution to the given equation?
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一元一次方程与代数求值挑战
The water depth in a certain river is 77.9 feet (ft). During a 30-day period, the water depth in this river is predicted to increase by a minimum of 1 ft and a maximum of 4 ft. What is the predicted maximum water depth, in feet, during this time?
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一元一次方程与代数求值挑战
\( 4\left(y-19\right)+11=3\left(y-19\right)+11 \)
What value of y is the solution to the given equation?
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一元一次方程与代数求值挑战
\( \left(7y+9\right)-\left(5y+3\right) \)
The given expression is equivalent to \( by+c \), where b and c are constants. What is the value of b?
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