plz answer guys first will be marked as brainliest
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11
Step-by-step explanation:
11. 10- (3p-4) = 4(p+1)+9
10 - 3p + 4 = 4p + 4 + 9
14 - 3p = 4p + 13
-3p - 4p = 13 - 14
-7p = -1
p = -1/-7
p = 1/7
__________________
12. 4y + y/5 =21
(20y+y)/5 = 21
(21y)/5 = 21
21y = 21*5
y = 105/21
y = 5
__________________
13. -3/8 * [4/7 + (-11/7)]
-3/8 * 4/7 + -3/8 * -11/7
= -12/56 + 33/56
= -12+33/56
= 21/56
__________________
Answered by
0
Step-by-step explanation:
11)p=1/7
12)y=5
13)21/56
please mark me as brainliest
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