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Mathematics, 02.07.2019 10:00 Shathep

1. tony and his sister maria have the same birthday but tony is five years older than maria. let the variable x represent tony's age and y represent maria's age. which graph represents the relationship between tony's age and maria's age? 2. solve the equation: 3 ( x -7 ) - x = 2x - 21 a) 7 b) -2 c) infinitely many solutions d) no solution 3. which equation is an identity? a. 8-(5x+2)=-5x-6 b. 7z+10-z=8z-2(z-5) c. 8m-4=5m+8-m d. 6y+5=6y-5 4. which equation has no solution? a) 7v+2=8v-3 b) 3x-5=3x+8-x c) 4y+5=4y-6 d) 7z+6=-7z-5

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