Question

Is the given number the solution of the equation

Answer 1

For #2 it is. #4 it isn’t. #6 it isn’t.

Answer 2

2) -7r - 15 = -2r; -3

Plug -3 for r.

-7(-3) - 15 = -2(-3)

6 = 6

The answer for #2 is yes.

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4) -3p = 4p + 35; -5

Plug -4 for p.

-3(-5) = 4(-5) + 35

15 = 15

The answer for #4 is yes.

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6) 5 - 15s = 8 - 16s; 3

Plug 3 for s.

5 - 15(3) = 8 - 16(3)

-40 = -40

The answer for #6 is yes.

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8) 6a + 3 = 3(3a - 2); 4

Plug 4 for a.

6(4) + 3 = 3(3*4 - 2)

27 = 30

The answer for #8 is no.