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Question:

Find the value of: 4y – 20 +12y – 2, if y = 11.

A 154
Explaination

The expression 4y – 20 +12y – 2 can be simplified before we substitute the value of the variable y. We first need to collect the like terms.
Step 1: Collect like terms.
4y – 20 +12y – 2 = (4 + 12)y – 20 – 2
= 16y – 22
Step 2: Substitute the value y = 11.
16y – 22 = 16 × 11 – 22
Step 3: Perform the multiplication.
16 × 11 – 22 = 176 – 22
Step 4: Find the difference.
176 – 22 = 154