The correct first step is : " add the 2 equations together "
What is Equation?
An equation is a mathematical statement with an '=' symbol between two expressions that have equal values.
Here, given equations are
 4x - 3y = -10
 2x + 3y = 4
In given equation the coefficient of y is equal with opposite sign, so for simplification of these equation we need to add these equation.
Thus, the correct first step is : " add the 2 equations together "
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