How do you evaluate: To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Answer:
9
Step-by-step explanation:
KL + KJ = 17
2 + 3x + 5x - 1 = 17 add like terms
8x + 1 = 17 subtract 1 from both sides
8x = 16 divide both sides by 8
x = 2
KL = 5x - 1 replace x with 2
5*2 - 1 = 9
Answer:
0.5×2/2=1/2 is the required fraction.
Answer:
first 3plus 7 =10 then 10 y is your answer
now you help me
Alexandra makes a pattern she uses 2 square for every 3 triangles in the pattern , how many triangles will Alexandra uses if the pattern has 18 square?
Answer:972
Step-by-step explanation:
Divide both numbers by 972 and they both go into each other
