Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.

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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.

Mathematics
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expand the parenthesis on the right then isolate the variable to one side then divide by the coefficient of the variable.
remember this is an equation so whatever you do to one side also do to the other to maintain the balance

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do you know how to expand the parenthesis?
would it be 3 times 2x - 3 times 5 ? @triciaal
no to expand the parenthesis multiply what is outside by each term inside
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what does this simplify to
oh ok thats what i said i just got the signs mixed up. thank you !
3(2x) - 15
you said "3 times 2x - 3 times 5 " means 15 times (2x-3)
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i meant (3 times 2x) - (3 times 5)
set the right side = left side to isolate the variable means get all the terms with the variable to one side and everything else on the other what do you get?
x=4 ?
yes
wait no
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ohh ok i see thank u so much
|dw:1436035991574:dw|
u added 15 to both sides then subtracted 4x then divided 2
thank you!!
correct
you are welcome

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