Question

If a=5,b=-4 and c=-3,what is the value of 2a-6b+3c?

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Answer 1

We are given that:

• a = 5
• b = -4
• c = -3

Given the expression:

`\displaystyle \large{2a - 6b + 3c}`

Evaluate the expression by substituing the given values in.

`\displaystyle \large{2(5)- 6( - 4)+ 3( - 3)} \\ \displaystyle \large{10- ( - 24)+ ( - 9)}`

Simplify the expression.

• Negative × Negative = Positive
• Negative × Positive = Negative

`\displaystyle \large{10 + 24 - 9} \\ \displaystyle \large{34- 9} \\ \displaystyle \large \boxed {25}`

Therefore, the value of the expression is 25.