Evaluate the expression

​Evaluate 8a + 3(c - b), when a = -2, b = 1, and c = 3

---

8a + 3(c - b), when a = -2, b = 1, and c = 3
​
= 8(-2) + 3(3 - 1)   {substituted in for a,b, and c}
= -16 + 3(2)   {multiplied 8 by -2, and worked inside parentheses}
= -16 + 6   {multiplied 3 by 2}
= -10   {added}

Ask Algebra House