1/4(5b + 11) = 19....multiply both sides by 4, eliminating the 1/4
5b + 11 = 19 * 4
5b + 11 = 76
5b = 76 - 11
5b = 65
b = 65/5
b = 13 <==
Answer:
(3,3) (-1,-3), you just have to look at the coordinates
Step-by-step explanation:
Replace the sec equation on the first one... Find the value of y first.. And then name the value of y as the third equation.. Replace the third equation on the sec one to get the value of x