Answer:
Step-by-step explanation:
solution: y 2 - 121 = 0. y 2 = 121. y = +11, -11. Therefore, the value of y is -11 and 11. Similarly, you can use the calculator to find the value of y for: 7y 3 + 4y + 2; 3y 2 + 2y - 9
Answer:
y = 5
Step-by-step explanation:
1) Simplify 7y+8+8y+7 to 15y + 15.
90 = 15y + 15
2) Subtract 15 from both sides.
90 - 15 = 15y
3) Simplify 90 - 15 to 75.
75 = 15y
4) Divide both sides by 15.
75/15 = y
5) Simplify 75/15 to 5.
5 = y
6) Switch sides.
y = 5
