Answer:
x = 4
y = -3
Step-by-step explanation:
2x + 4y = -4
x + 2y = -2 ---------(1)
3x + 5y = -3 ----------(2)
Equation (1) multiplied by 3 then subtracted from equation (2),
(3x + 5y) - 3(x + 2y) = -3 + 6
-y = 3
y = -3
From equation (1)
x + 2(-3) = -2
x - 6 = -2
x = 6 - 2
x = 4
Correct Question:
Explain how you know that 88 is a solution to the equation 1/8x =11 by completing the sentences:
The word "solution" means . . .
88 is a solution to 1/8x=11 because . . .
Answer/Step-by-step explanation:
✔️The word solution means the value of the unknown variable, x. This means, when the value of x is substituted into the equation, the equation becomes balance as the value on the left equals the value on the right.
✔️88 is a solution to ⅛x = 11 because:
if we substitute x for 88 into the equation, both sides would be equal.
Thus:
⅛×88 = 11
11 = 11
Answer:
5.3x - 4 .
Step-by-step explanation:
(6.7x -3) - (3.4x - 1) + (2x - 2)
1. using the commutative property:
= 6.7x - 3 + 2x - 2 - (3.4x - 1) (we can remove the parentheses around the first 2 groups because they are added).
2. Using the distributive property on the last group:
= 6.7x - 3 + 2x - 2 - 3.4x + 1 (distributing the negative over the parentheses).
3. Now adding like terms we get:
5.3x - 4 (answer).
Answer:
7/12
Step-by-step explanation:
i think this is right sorry if wrong
