Read each problem. name the axiom of equality that it illustrates.
1. a = b and 3a = 7; 3b = 7
2. x = y and x^2 = 5; then y^2 = 5
name the axiom used to prove the rule of addition.
rule- for addition of equals: if a = b, then a + c = b + c
1. a + c = b + c

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

4

step-by-step explanation:

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10