Solve for x. 16x – 3(4x + 5) = 2x + 9
2 answers:
To solve for x, you need to isolate/get the variable "x" by itself in the equation:
16x - 3(4x + 5) = 2x + 9 Distribute -3 into (4x + 5)
16x + (-3)4x + (-3)5 = 2x + 9
16x - 12x - 15 = 2x + 9 Combine like terms (terms that have the same variable and power/exponent), which are 16x - 12x, as they have the same variable "x" and a power/exponent of 1.
4x - 15 = 2x + 9 Subtract 2x on both sides
4x - 2x - 15 = 2x - 2x + 9
2x - 15 = 9 Add 15 on both sides
2x - 15 + 15 = 9 + 15
2x = 24 Divide 2 on both sides to get "x" by itself
x = 12
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Answer:
The result is 19
Step-by-step explanation:
Step 1: Parenthesizing (5-2)=3
Step 2: Exponentiation
Step 3: Multiplication and division 3x4=12 and 6/3=2
Step 4: Addition and subtraction 9+12=21, and 21-2=19
21-2
19
The operations are ordered from highest to lowest in the order:
1. Parenthesizing,
2. Factorial,
3. Exponentiation,
4. Multiplication and division,
5. Addition and subtraction.
Hope this helps!