0=(-9)
Step-by-step explanation:
4x + 7 = -2 + 4x
4x + 7 = 4x -2
subtract 7 from both sides of the equation.
simplify your answer.
subtract 4x from both sides of the equation.
simplify your answer again.
4x + 7 = 4x -2
<u>_</u><u>_</u><u>_</u><u>-</u><u>7</u><u> </u><u>=</u><u> </u><u> </u><u>4</u><u>x</u><u> </u><u>-</u><u>7</u><u> </u>
<u> </u><u>4</u><u>x</u><u> </u><u>_</u><u>_</u><u> </u><u>=</u><u> </u><u> </u><u>4</u><u>x</u><u> </u><u>-</u><u>9</u>
<u>_</u><u>_</u><u>4</u><u>x</u><u> </u><u>=</u><u> </u><u>4</u><u>x</u><u> </u><u>-</u><u>9</u>
<u> </u><u>-</u><u>4x = -4x</u><u> </u><u>-</u><u>9</u>
<u>_</u><u>_</u><u>0</u><u> </u><u>=</u><u> </u><u> </u><u>-</u><u>9</u>
the input is a contradiction: it has no solutions.
