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Shalnov [3]
3 years ago
14

Help me with this plssss I dont understand ​

Mathematics
2 answers:
frozen [14]3 years ago
8 0

Answer:

y = 18

a = -2

Step-by-step explanation:

Hello There!

For the first one we need to create an equation to solve for y

23+7=y+12

30=y+12

isolate the variable using inverse operations

subtract 12 from each side

30-12=18

we're left with y = 18

for the second one we need to create an equation to solve for a

3+15+a=8+8+8

3+15=18

8+8+8=16

16=18+a

step 1 subtract each side by 18

16-18=-2

we're left with a = -2

Nataly_w [17]3 years ago
5 0
i agree with the person above it seems very accurate
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