Answer:
1. 21
STEPS:
m +6 =13 + 6 + y
Subtract 6 from both sides
m + 6 - 6 = 13 + 6 + y - 6
Simplify:
13 + y = m
Subtract 13 from both sides
13 + y - 13 = m - 13
Simplify:
y = m - 13
m + 13 = 21
2. 3
STEPS:
y - 4 = 3 y - 4 + (-4)
Add 4 to both sides
y - 4 + 4 = 3 - 4 - 4 + 4
Simplify
y = 3 - 4
Subtract the numbers: : 3 - 4 = -1
y = -1
y - 7 = 3
Step-by-step explanation:
I hope it helps, Ty!
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