Directions: Write the variables in each given expressions and equations. Example: a) 2y + x = 15--> y, x b) 2m + 8 --> m

13) t + 7 *
1 point

14) 4m *
1 point

15) 4s=2r *
1 point

16) 16a + 12a = 28 a *
1 point

17) 2a +2b *

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