Raymartsantiago75idn
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I. Perform the indicated operation. Use a separate sheet of paper as your answer sheet. (3 points each) 1) 143m + 713m 2) 231p - (713p +2) 3) (725 + 4x + 7) + (-3x + 5z?) 4) (9x + 12) + (x + 7) 5) (15x4 - 5y + 3) - (5x4 +12)
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Sagot :

Babysevidn

1. 856 m

2. -2 (241p + 1)

3. 732 + x + 5z²

4. 72 x + 452.5 - 5 x y - 37.5 y

Step-by-step explanation:

1. 143m + 713m collect the terms by adding their coefficients

like: (143+713)m and add the numbers so you can get the answer Wich is 856 m

2. when there's is a - in front of an expression in parentheses, change the sign of each terms in the expression 231p - 713p - 2 collect like terms - 142p - 2 Factor out -2 from the expression solution -2 (241p + 1)

3. (725 + 4x + 7) + (-3x + 5z?) add the numbers (732 + 4x) + (-3 + 5z²) when there is a + in front of an expression in parentheses, the expression remains the same (732 + 4x) - 3x + 5z² remove unnecessary parentheses 732 + 4x - 3x + 5z² collect like terms 732 + x + 5z² solution 732 + x + 5z²

4. (9x + 12) + (x + 7) 5) (15x4 - 5y + 3) - (5x4 +12) remove the unnecessary parenthesis 9x + 12 + (x + 7) 5) (15x4 - 5y + 3) - (5x4 +12) multiply the numbers 9x + 12 + (x + 7.5) x (60 - 5 y + 3) - (5 x 4 + 12) multiply the numbers 9x + 12 + (x + 7?5) x (60 - 5y + 3) - (20 + 12) Add the numbers 9 x + 12 + (x + 7.5) x (63 - 5y) - (20 + 12) Add the numbers 9 x + 12 + (x + 7.5) x (63 - 5y) - 32 multiply the parenthesis 9 x + 12 + 63 x - 5 x x y + 472.5 - 37.5 y - 32 collect like terms 72 x + 12 -5 x y + 472.5 - 37.5y - 32 calculate the sum or difference 72 x + 452.5 - 5 x y - 37.5y solution 72 x + 452.5 - 5 x y - 37.5 y

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