-3x+13=16
Move +13 to the other side. Sign changes from +13 to -13.
-3x+13-13=16-13
-3x=16-13
-3x=3
Divide by -3 for both sides.
-3/-3x=3/-3
Cross out -3 and -3, divide by -3, then becomes 1*1*x=x
x=-1
Answer: x=-1
Answer:
The way I was taught to do it is to change value into a total fraction, then multiple the numerators together, multiply the denominators together, and finally reduce as far as possible.
7/9 x 5 2/5 = 7/9 x 27/5 = 189/45 = 4 9/45 = 4 1/5
1 3/4 x 4 1/6 = 7/4 x 25/6 = 175/24 = 7 7/24
Answer:
22(12) - 18
Step-by-step explanation:
Answer and Step-by-step explanation:
Question 4:
We need to solve for y, so we need to use the cosine trig function, which is adjacent divided by hypotenuse.

Question 5:
We need to use the sine trig function, which is opposite divided by hypotenuse.

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