4x-6=7x+15

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Rod · Answer 1 · 2019-09-22T13:56:08+0000

4x-6=7x+15,

Subtract 4x from each side:

-6=3x+15,

Subtract 15 from each side:

-21=3x,

Which is the same as:

3x=-21,

Divide each side by 3:

x=-7 is the solution.