Advertisements
Advertisements
Question
Find x, such that: `7/-4 = "x"/8`
Sum
Advertisements
Solution
`7/-4 = "x"/8`
-4x = 7 × 8
x = `(7 xx 8)/-4 = -7 xx 2 = - 14`
x = - 14
OR
`=> (- 7 xx 2)/(4 xx 2) = "x"/8`
`=> -14/8 = "x"/8`
x = - 14
shaalaa.com
Concept for Problem Solving Using Operations on Rational Numbers
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Express the following rational number in the standard form. `(-7)/-20`
Fill in the blank:
`5/8` and `3/10` are on the ________ side of zero.
Add: `4/-15 "and" (-7)/-15`
Multiply: `6 2/3 "and" -3/8`
Multiply: `3 3/5 "and" -10`
Evaluate: `(7/8 xx 8/7) + ((-5)/9) xx (6/-25)`
A bus is moving with a speed of 65 `1/2` km per hour. How much distance will it cover in 1 `1/3` hours.
Evaluate: `3 5/12 - 1 2/3`
By what rational number should we multiply `20/-9`, so that the product may be `(-5)/9`?
What rational number should be subtracted from `5/8` to get `8/5`.
