3(x+2)+5x-7
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Answered by
2
Step-by-step explanation:
3(x + 2) + 5x - 7
= (3x + 3×2) + 5x-7
= 3x + 6 + 5x - 7
= 3x + 5x + 6 - 7
= 8x - 1
ANSWER: 8x - 1
Answered by
0
Step-by-step explanation:
The expression is 8x-18x−1 .
The value at x=2 is 15.
Step-by-step explanation:
Given : Expression 3(x+2)+5x-73(x+2)+5x−7
To find : Simplify the expressions and find the value of x is equal to 2 ?
Solution :
Writ the expression as,
f(x)=3(x+2)+5x-7f(x)=3(x+2)+5x−7
Solve,
f(x)=3x+6+5x-7f(x)=3x+6+5x−7
f(x)=8x-1f(x)=8x−1
Substitute the value of x=2,
f(2)=8(2)-1f(2)=8(2)−1
f(2)=16-1f(2)=16−1
f(2)=15f(2)=15
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