exam
Maths Puzzle
Numerical Ability
x=3-3y
y+3y=-6
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exam Other Question
find slope & y intercept
2x - 3y = 6
"If 5 to the 21st power * 4 to the 11th power = 2 * 10 to the nth power, what is the value of n?"
With a calculator, the answer is 21. However, I would appreciate knowing how to solve this problem without a calculator. Thank you.