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
A point is plotted on the x-axis of the xy-plane at (20, 0). The point is then moved 5 units to the right a certain number of times until it is at (40, 0). How many times is the point moved to the right?
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一元一次方程与代数求值进阶
If \( \frac{\left(x-10\right)}{2}=8 \), what is the value of \( x−10 \)?
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一元一次方程与代数求值挑战
If \( 11r=8r+27 \), what is the value of \( 4r \)?
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一元一次方程与代数求值挑战
\( x=9a\left(b+10\right) \)
The given equation relates the positive numbers a, b, and x . Which equation correctly expresses a in terms of b and x?
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一元一次方程与代数求值进阶
If \( 6x=60 \), what is the value of \( 7x+3 \)?
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一元一次方程与代数求值挑战
If \( \frac{9}{6}\left(x-5\right)-36=\frac{7}{6}\left(x-5\right)+28 \), what is the value of \( x−5 \)?
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一元一次方程与代数求值挑战
If\( a=6k+5r \) and \( b=9k-12r+3 \), which expression is equivalent to \( a−b \)?
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一元一次方程与代数求值进阶
\( 6\left(x-8\right)=\left(x-8\right)+6 \)
If x is the solution to the given equation, what is the value of \( x−8 \)?
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一元一次方程与代数求值进阶
\( 1.5c+3d=84 \)
The given equation describes the relationship between the number of cats, c, and the number of dogs, d, that can be cared for at a pet care business during a week. If the business cares for 28 dogs during a week, how many cats can it care for during this week?
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一元一次方程与代数求值进阶
\( 7\left(x-4\right)=13+5\left(x-4\right) \)
If x is the solution to the given equation, what is the value of \( x−4 \)?
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一元一次方程与代数求值进阶
Which expression is equivalent to \( \left(4nr^2+2nr\right)+\left(3n^2r+7nr\right) \)?
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一元一次方程与代数求值挑战
\( b-65=\frac{x}{y} \)
The given equation relates the positive numbers b, x, and y. Which equation correctly expresses x in terms of b and y?
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