Digital SAT Math Test 2 Question 7

The solution to the given system of equations is $(x, y)$. What is the value of $y$?
$$3x-2y=5$$
$$4x+2y=9$$
Answer:
A

Explanation

The correct answer is Choice A.

Add the two equations to eliminate a term and solve for a variable.

Alternatively, make $x$ the subject in the first equation and then substitute it into the second equation to find $y$.

Choices B, C, and D are incorrect and may result from algebraic mistakes.

✨ Expert's Tip ✨

Always substitute expressions with the parentheses to avoid algebraic mistakes.

An alternate method is to plot both lines on a graph and find the intersection point.

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