The number that needs to go in the blank is -20
solution is (- 1, 1 )
given the 2 equations
2x - y = - 3 → (1)
x + y = 0 → (2)
add (1) and (2) term by term to eliminate the term in y
3x = - 3 ( divide both sides by 3 )
x = - 1
substitute x = - 1 in either of the 2 equations and solve for y
(2) : - 1 + y = 0 ( add 1 to both sides )
y = 1
solution is (- 1, 1 )
Answer: The roses costed $9
Step-by-step explanation:
3 multiplied by 3 equals 9
1 multiplied by 6 equals 6
9+6=15
Answer:
square a = 7
square b = 50
square c = 7
sqaure d = 6
7 x 56 = (7 x 50) + (7 + <u>6</u>)
<u>350</u> + <u>42</u> = <u>392</u>
7 x 56 = <u>392</u>
Answer:
-5 and 3
Step-by-step explanation:
you do thos so you can eliminate x and solve for y then substitute the answer to y in one of the equations to solve the equation
