(1). 5x - 3 = 3 (5-x) - 10
(2). 3(y-1) + y = -y + 12
(3). 10 = 7 - x
(2). 3(y-1) + y = -y + 12
(3). 10 = 7 - x
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5x - 3 = 3(5 - x) - 10
5x - 3 = 15 - 3x - 10
5x + 3x = 15 - 10 + 3
8x = 5 + 3
8x = 8
x = 1
3 (y - 1) + y = -y + 12
3y - 3 + y = -y + 12
4y + y = 12 + 3
5y = 15
y = 3
10 = 7 - x
x = 7-10
x = -3
Verified answer
5x - 3 = 3(5 - x) - 10
5x - 3 = 3(5) - 3(x) - 10
5x - 3 = 15 - 3x - 10
(5 + 3)x = (15 - 10 + 3)
8x = (5 + 3)
8x = 8
x = 8/8
x = 1
3(y - 1) + y = -y + 12
3(y) - 3(1) + y = -y + 12
3y - 3 + y = -y + 12
(3 + 1 + 1)y = 12 + 3
(4 + 1)y = 15
5y = 15
y = 15/5
y = 3/1
y = 3
10 = 7 - x
x = 7 - 10
x = -(10 - 7)
x = -3