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Allan Andrade
Mathematics
17 July, 08:51
What is the substitution for 5x+2 (8-4x) = 7
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Miles
17 July, 09:16
0
x=3
Step-by-step explanation:
5x+2 (8-4x) = 7
multiply parentheses by 2
5x+16-8x=7
collect like terms
-3x+16=7
move constant to right
3x=7-16
calculate
-3x=-9
divide both sides by - 3
x=3
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