Answer:
<h2> The second: 8m + 7n - 3 </h2>
Step-by-step explanation:
Q = 7m + 3n,
R = 11 - 2m,
S = n + 5,
T = -m - 3n + 8.
Q + S - T = 7m + 3n + (n + 5) - (-m - 3n + 8)
Q + S - T = <u>7m</u> + 3n + n + 5 <u>+ m</u> + 3n - 8
Q + S - T = 8m + 7n - 3
Answer:
b
Step-by-step explanation:
2(k-5)+3k=k+6
step 1 distribute the 2 to whats in the parenthesis
2k-10+3k=k+6
step 2 combine any like terms if there are any
5k-10=k+6
step 3 add 10 to each side
5k=k+16
step 4 subtract 1k from each side
4k=16
step 5 divide each side by 4
k=4
Answer:
d
Step-by-step explanation:
-10=-5*2; 4=2*2
l-10+3l= 7; l4+3l=7
Answer:
Step-by-step explanation:
