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 \( 5-7\left(2-4x\right)=16-8\left(2-4x\right) \), what is the value of \( 2−4x \)?
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一元一次方程与代数求值基础
What value of p satisfies the equation \( 2p+275=325 \)?
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一元一次方程与代数求值基础
If \( 8x=6 \), what is the value of 72x?
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一元一次方程与代数求值挑战
If 8x = 6, what is the value of 72x?
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一元一次方程与代数求值挑战
\( \frac{1}{3}\left(x+6\right)-\frac{1}{2}\left(x+6\right)=-8 \)
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
\( p=\frac{k}{4j+9} \)
The given equation relates the distinct positive numbers p, k, and j. Which equation correctly expresses \( 4j+9 \) in terms of p and k?
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一元一次方程与代数求值进阶
Which expression is equivalent to \( \left(7x^3+7x\right)-\left(6x^3-3x\right) \) ?
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一元一次方程与代数求值进阶
A chemist combines water and acetic acid to make a mixture with a volume of 56 milliliters (mL). The volume of acetic acid in the mixture is 10 mL. What is the volume of water, in mL, in the mixture? (Assume that the volume of the mixture is the sum of the volumes of water and acetic acid before they were mixed.)
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一元一次方程与代数求值基础
If \( 4x+2=12 \) , what is the value of \( 16x+8 \)?
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一元一次方程与代数求值基础
The expression \( 90y^5-54y^4 \) is equivalent to \( ry^4\left(15y-9\right) \) , where r is a constant. What is the value of r?
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一元一次方程与代数求值基础
A bus is traveling at a constant speed along a straight portion of road. The equation \( d=30t \) gives the distance d, in feet from a road marker, that the bus will be t seconds after passing the marker. How many feet from the marker will the bus be 2 seconds after passing the marker?
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一元一次方程与代数求值挑战
\( 4x+6=18 \)
Which equation has the same solution as the given equation?
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