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Explain how to solve the equation 2(4x - 11) + 9 = 19

User Rami
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2 Answers

3 votes
2(4x-11)+9=19 -- expand brackets multiply inner by. Outer terms
8x-22+9=19 -- combine like terms
8x-13=19 -- add 13
8x=32 -- divide by 8

x=4
User Mira
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2(4x-11)+9=19 \\ \\ 8x-22=19-9 \\\ \\ 8x-22=10 \\ \\ 8x=10+22 \\ \\ 8x=32 \\ \\ \boxed{x=(32)/(8)=4}
User David Pfau
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