Question

Given -3(2x+7)=-29-4x prove x=4

Answer 1

$-3(2x+7)=-29-4x\\-3(2(4)+7)=-29-4(4)\\-3(8+7)=-29-16\\-3(15)=-45\\-45=-45$

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Answer 2

Answer:

x = 4

Step-by-step explanation:

Given

- 3(2x + 7) = - 29 - 4x ← distribute parenthesis on left side

- 6x - 21 = - 29 - 4x ( add 4x to both sides )

- 2x - 21 = - 29 ( add 21 to both sides )

- 2x = - 8 ( divide both sides by - 2 )

x = 4 ← as required