Determine whether the equation
-4 (x-3) + 7x = 3(x+4)
is true for all values of x (and hence an identity) or if it is true for only some values of x (and hence a conditional equation.)
| -4 (x-3) + 7x | = -4x + 12 +7x = 3x + 12 = 3(x + 4) |
Simplify the left hand side and determine if it is identical to the right hand side |
| State an answer with a reason. | Is this an identity? |
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