a + 5 = 11
You need to isolate the variable by subtracting from both sides
a + 5 - 5 = 11 - 5
a = 6
The Addition/Subtraction Property of Equality states that if you add or subtract the same number to both sides of an equation the two sides still remain equal.
:))
Answer:
Combine like terms
Step-by-step explanation:
You would multiply 100 by 6 to get the 6 away from m. this leaves m on one side of the equal sign and 6•100 on the other. multiply that out, which is 600. so m=600.
12£ and 42£
Step-by-step explanation:
gethin gets 2/9
David gets 7/9
total money is equal to 54
Gethin gets 54x 2/9=12
David gets 54x7/9=42
6.5X + 9(30) = 8(30+X)6.5X +270 = 240 + 8X270-240 = 8X-6.5X1.5X = 30X = 30/1.5 =20 ounces of $6.50 alloy9 is within 1 of 86.5 is within 1.5 of 81.5 is 3/2 of 130 is 3/2 of 20You know you need more of $9 alloy since it's closer to $8You need exactly 3/2 or 1.5 times more of the $9 alloy30 is 1.5 times 20
