Minta tolong ya kakak dijawab soal no.4 Pakai Cara

a) 7x-3x = (7 - 3)x = 4x

b) -(7 + 3)x = -10x

c) (3 - 7)x = -4x

d) (5 - 3)pq = 2pq

e) (6 - 5)x^2 = x^2

f) (1 - 1)x^2 = 0

g) -(5x - 4) = 4 - 5x

h) 3a - 3b + a - 3b = (3 - 1)a - (3 + 3)b = 2a - 6b
= 2 (a - 3b)

i) -(a - b - c) = b + c - a

j) -( -2x + 4y - 5z) = 2x + 5y - 4y

k) 3x - (x + 2) = 2x - 2 = 2(x - 1)

l) 11y - ( -y + 1) = (11 + 1)y - 1 = 12y - 1

m) 5a - (1 -2a) = (5 + 2)a - 1 = 7a -1

n) 10 - (3x - 5) = -3x + (10 + 5) = -3x + 15
= 3(5 - x)

o) 7 - (5a + 1) = (7 -1) - 5a = 6 - 5a