Answer:
a) y + 3y + (y - 2) + 4(y - 2) = 116
b) y = 14
c) 48
Step-by-step explanation:
Sasha says. I am y years old. y
mother's age is 3 times my age 3y
brother is 2 years younger than me y - 2
father's age is 4 times my brother's age 4(y - 2)
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total of our four ages is 116 years.
a) Write an equation to show this.
y + 3y + (y - 2) + 4(y - 2) = 116
b) Solve the equation.
distribute
y + 3y + y - 2 + 4y - 8 = 116
combine like terms
9y - 10 = 116
add 10 to both sides
9y = 126
Divide both sides by 9
y = 14
c) How old is Sasha's father?
4(y - 2)
4(14 - 2)
4(12)
48
