1) 5(х+3)=27+3х5x + 15 = 27 + 3x2x = 12x = 6
2) 3y + (4 - 2y) = 63y + 4 - 2y = 6y + 4 = 6y = 2
3) 5y - (13 + y) = y + 145y - 13 - y = y + 144y - 13 = y + 143y = 27y = 9
4) 3(2 - 4) - 2(+3) = -23(-2) - 2(3) = -2-6 - 6 = -2-12 = -2
5) 4y - 3 = 2(7 - y) + 14y - 3 = 14 - 2y + 16y = 18y = 3
1) 5(х+3)=27+3х
5x + 15 = 27 + 3x
2x = 12
x = 6
2) 3y + (4 - 2y) = 6
3y + 4 - 2y = 6
y + 4 = 6
y = 2
3) 5y - (13 + y) = y + 14
5y - 13 - y = y + 14
4y - 13 = y + 14
3y = 27
y = 9
4) 3(2 - 4) - 2(+3) = -2
3(-2) - 2(3) = -2
-6 - 6 = -2
-12 = -2
5) 4y - 3 = 2(7 - y) + 1
4y - 3 = 14 - 2y + 1
6y = 18
y = 3