Delete as this is the wrong answer. Made a typo in the answer.
Answer:
x =
y = 24
Step-by-step explanation:
-3x - 8y = 20 .... (1)
-5x + y = 19 .... (2)
What we can do is take the (2) equation
-5x + y = 19
and solve for y by adding 5x to both sides
y = 24
now that we have y we substitute it in for y in equation (1)
-3x - 8(24) = 20
-3x - 192 = 20
we want to solve for x so we need to get its self.
add 192 to both sides
-3x = 212
now we divide both sides by -3. It's going to be a fraction.
x =
What do you need help with
Answer:
70
Step-by-step explanation:
= First term =
= Common difference =
= Number of terms = 20
Sum of arithmetic progression is given by
The sum of the first 20 terms of the arithmetic sequence is 70.
Answer:
Step-by-step explanation:
2 x 3−3 x 2+ x −30=0 ... The groups have no common factor and can not be added up to form a multiplication. Polynomial Roots Calculator : 3.3 Find roots (zeroes) of : F(x) = 2x3-3x2+x-30 ... Subtract 5 from both side of the equation : ... abc. a. x. y. /. |abs|. ( ). 7. 8. 9. *. 4. 5. 6. -. %. 1. 2. 3. +. <. > 0. , . = abc. a. b. c. d. e.