1.- 4(X+1) - 20 = 28
2.- 2(X-5) + 3(X+5) = 20
3.- SI:
MN-P=Q ., HALLAR "M"
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1) 4(x+1) -20 =28
4x+4 -20 = 28
4x = 28+16
4x = 44
x = 44/4 =11
2) 2( x-5 ) + 3 (x+5) = 20
2x-10 +3x +15 = 20
5x = 20 -5
5x = 15
x = 15/5 = 3
3) MN-P = Q despejamos M
MN = Q + P
M = Q + P
N
4x+4 -20 = 28
4x = 28+16
4x = 44
x = 44/4 =11
2) 2( x-5 ) + 3 (x+5) = 20
2x-10 +3x +15 = 20
5x = 20 -5
5x = 15
x = 15/5 = 3
3) MN-P = Q despejamos M
MN = Q + P
M = Q + P
N
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