Advertisements
Advertisements
प्रश्न
Simplify the expression and find the value if x is equal to 2:
3 (x + 2) + 5x - 7
बेरीज
Advertisements
उत्तर
3 (x + 2) + 5x - 7
= 3x + 6 + 5x - 7
= 3x + 5x + 6 - 7
= 8x - 1
Putting x = 2 we get,
= (8 × 2) - 1
= 16 - 1
= 15
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
If m = 2, find the value of 9 - 5m.
If a = 2, b = −2, find the value of a2 + b2.
Simplify the expression and find the value if x is equal to 2.
6x + 5 (x − 2)
Simplify this expression and find its value if x = 3, a = −1, b = −2.
3a + 5 - 8a + 1
If x = 10, evaluate:
6x2 – 25x
If x = 10, evaluate:
`1/50xx"x"^3`
If x = 5 and y = 4, evaluate:
8xy
If m = − 8, evaluate:
`"m"^2/4`
If p = − 10, evaluate:
`"p"^2/50`
If m = 9 and n = − 2, evaluate 4mn
