Step-by-step explanation:
2x + y = 21
Solving
2x + y = 21
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1y' to each side of the equation.
2x + y + -1y = 21 + -1y
Combine like terms: y + -1y = 0
2x + 0 = 21 + -1y
2x = 21 + -1y
Divide each side by '2'.
x = 10.5 + -0.5y
Simplifying
x = 10.5 + -0.5y
Answer:
$19.25
Step-by-step explanation:
2.5*7.7=19.25
Step-by-step explanation:
The answer is 6/16, simplified to 3/8
Answer:
13.
Step-by-step explanation:
91 divided by 7.
Answer:
7 is the correct answer. brainliest plese