Yes, 12x and 5x are like terms because they have the same variable, which is 'x'. Like terms are terms that have the same variable(s) raised to the same power(s). In this case, both terms have 'x' raised to the power of 1. Therefore, they can be combined or simplified together in algebraic expressions.
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Yes, they are like terms because they are both order of x of the same degree and you can add them
To simplify the expression 18 + 7x - 12 + 5x, you first combine like terms. Combine the constants (18 and -12) to get 6. Then, combine the x terms (7x and 5x) to get 12x. Therefore, the simplified expression is 6 + 12x.
LCM(5x, 12x) = 60x
12x - 14 = 5x12x = 5x + 147x = 14x = 2
Like terms are: 5x -7x +2x and 3 -5
If you're adding them, that equals 12x