Answer:
the solution is x = -7
Explanation:
Collect terms:
x(5 -2) +(-7 +2) = -26
3x -5 = -26
Add 5 to get the variable term by itself:
3x = -21
Divide by the coefficient of the variable:
x = -7
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The answer to, "what is it?" is that it is a linear equation in x. After you collect terms, it is what is referred to as a "two-step" linear equation, because it takes two steps to solve it: add 5, divide by 3.