20 because the question says 20 study only french
Answer:
x = 5
Step-by-step explanation:
3x + 2(2x − 1)= 33
simplify
3x + 4x - 2 = 33
7x - 2 = 33
add 2 to both sides
7x - 2 + 2 = 33 + 2
7x = 35
divide both sides by 7
7x/7 = 35/7
x = 5
Answer:

Step-by-step explanation:


X^2 - 12x = 61
Take half of the coefficient of the middle term (half of -12x), square this result, and then add, and then subtract, from -12x:
x^2 - 12x + (6)^2 - (6)^2 = 61
(x-6)^2 - 36 = 61, and so (x-6)^2 = 97
Note: These results are all equivalent; choose the one you think best.