How do you solve $7 (3 + 4 x) = - 7$ $7( 3+ 4x ) = - 7$ ?

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Answer 1 · 2016-11-28T05:27:48

$x = - 1$ $x=-1$

$7 (3 + 4 x) = - 7$ $7(3+4x)= -7$

Distribute the $7$ $7$ to $3$ $3$ and $4 x$ $4x$ by multiplying.

$21 + 28 x = - 7$ $21+28x= -7$

Subtract $21$ $21$ from both sides

$28 x = - 28$ $28x =-28$

Divide by $28$ $28$ on both sides

$x = - 1$ $x=-1$

How do you solve 7(3+4x)=−77( 3+ 4x ) = - 7?