Question

"Question 8 Simplify and solve the linear equation 15(y - 4) - 2(y - 9) + 5(y + 6) = 0

Linear Equations in One Variable Page 34"

Answer 1

15(y-4)-2(y-9)+5(y+6)=0
18y=12
y=2/3

Answer 2

Equations with linear expressions in one variable only are known as linear equations in one variable.

 

An algebraic equation is an equality involving variables. It has an equality sign(=). The expression on the left of the equality sign is the Left Hand Side (LHS). The expression on the right of the equality sign is the Right Hand Side (RHS).

In an equation the values of the expressions on the LHS and RHS are equal

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Solution:

15(y - 4) - 2(y - 9) + 5(y + 6) = 0

First solve the brackets...

15y - 60 -2y +18 +5y+30=0

15y-2y+5y -60+18+30=0

13y+5y-42+30=0

18y -12=0

18y=12

y=12/18= 2/3

y=2/3

Hence, the value of y= 2/3

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Hope this will help you.....