What is the value of a if (2a+3)−(4a−8)=7?

Step-by-step explanation:

2a + 3 - 4a + 8 = 7

-2a + 11 = 7

-2a = -4

a = 2

Step-by-step explanation:

When there is a ( - ) in front of an expression in parentheses , change the sign of sign of each term in the expression

Collect like terms

Add the numbers: 3 and 8

Move 11 to right hand side and change it's sign

Subtract 11 from 7

Divide both sides by -2

Calculate

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answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

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