Which expression is equivalent to $3(x + 2) - (x - 4)$?
A$2x - 2$
B$3x + 6$
C$4x + 2$
D$2x + 10$
Answer & Solution
Correct answer: D. $2x + 10$
Distribute: $3(x + 2) = 3x + 6$ and $-(x - 4) = -x + 4$. Combine: $3x + 6 - x + 4 = 2x + 10$.
Related questions
The line $y = 4$ intersects the parabola $y = x^2 - 4$ at how many points in the xy-plane?Which expression is equivalent to $\frac{2}{x+1} - \frac{1}{x-2}$?The function $h(x) = a \cdot b^x$ passes through $(0, 12)$ and $(1, 36)$. What is the valuA bacteria culture starts with 80 cells and grows by 25% per hour. Which function models tFor the function $f$, $f(0) = 200$ and $f(x)$ decreases by 50% for each increase of $x$ byIn the xy-plane, the line $y = 5$ intersects the parabola $y = x^2 + bx + 9$ at exactly onHow many distinct real solutions does the equation $(x+2)^2 = -9$ have?What is the minimum value of the function $g(x) = (x-3)^2 + 7$?