Are the expressions 7y + 5 − 3 and 7y + 2 equal?

Yes

Step-by-step explanation:

Reason 1: If you were to plug in a number for y, they both would come out as equal.

Ex: y=2,

7y + 5 - 3 = 7(2) + 5 - 3 = 14 + 5 -3 = 19 - 3= 16

7y + 2 = 7(2) + 2 = 14 + 2 = 16

Reason 2: 5 - 3 = 2

Yes, they are.

Step-by-step explanation: 7y + 5 - 3 could be solved by adding similar terms. So, in this case: 7y + 5 - 3 = 7y + 2. So, the expressions are equal.

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

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step-by-step explanation: