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
\( 6x-5x+130=260 \)
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
If \( 2(5−6x)+5(5−6x)+4=6(5−6x)+1 \), what is the value of \( 6x−5 \)?
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一元一次方程与代数求值挑战
If \( 7\left(x+2\right)=49 \) , what is the value of \( x+2? \)
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一元一次方程与代数求值挑战
\( b-59=\frac{x}{y} \)
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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一元一次方程与代数求值进阶
A batch of smoothies consists of 4 cups of milk and 2 bananas and has 1,228 milligrams (mg) of calcium. There is 304 mg of calcium in 1 cup of milk. How much calcium, in mg, is in 1 banana?
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一元一次方程与代数求值进阶
In March, an account manager completed 15 more than 3 times the number of sales the account manager completed in April. In March and April, the account manager completed 327 sales. How many sales did the account manager complete in April?
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一元一次方程与代数求值挑战
If \( \frac{x-5}{4}=\frac{x-5}{11} \) , 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
\( \left(9y+9\right)-\left(5y+3\right) \)
The given expression is equivalent to by + c, where b and c are constants, what is the value of b?
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一元一次方程与代数求值挑战
If \( a=3k+4r \) and \( b=9k-12r+6 \) , which expression is equivalent to \( a−b \) ?
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一元一次方程与代数求值进阶
The equation 7p + 7w = 420 represents the number of purple tiles, p, and the number of white tiles, w, a designer needs to cover a 420-square-inch section of a wall. The designer needs 32 purple tiles for the wall. How many white tiles does she need?
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一元一次方程与代数求值进阶
Which expression is equivalent to \( \left(9y+12x\right)+\left(7y-4x\right) \)?
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一元一次方程与代数求值进阶
If 6x = 5 , what is the value of 24x ?
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