Answer:
12
Step-by-step explanation:
Note:
x = -2 ; y = 5
Plug in -2 for x and 5 for y.
3(-2) + 4(5) - 2
Remember to follow PEMDAS. First solve for multiplication, then combine:
3 * -2 = -6
4 * 5 = 20
-6 + 20 - 2
Combine like terms:
20 - 6 - 2 = 12
12 is your value.
~
Answer:
Step-by-step explanation:
For x:
8x = 18 - 2y
x = (18 - 2y)/8
For y:
2y = -8x + 18
y = -4x + 9
Twice a number divided by 5 is expressed known as 2x/5. Equations are expressions separated by an equal sign.
Answer:
c
Step-by-step explanation:
because that would be the wrong one
Step-by-step explanation:
In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations. For example, 3x² − 2xy + c is an algebraic expression. Since taking the square root is the same as raising to the power, is also an algebraic expression.
