Ответ:
Пошаговое объяснение:
1)
4*(2x - 1) = 3*(3x + 5)
8x - 4 = 9x + 15
9x - 8x = -4 - 15
x = -19
==========
2)
3*(5 - 2y) = 2*(4 + 2y)
15 - 6y = 8 + 4y
4y + 6y = 15 - 8
10y = 7
y = 7:10
y = 0,7
=============
3)
3*(6x - 3) = 5*(2x + 7)
18x - 9 = 10x + 35
18x - 10x = 35 + 9
8x = 44
x = 44:8
x = 5,5
============
4)
-3*(5 + 2y) = 4*(3 - 3y)
-15 - 6y = 12 - 12y
12y - 6y = 15+12
6y = 27
y = 27:6
y = 4.5
===============
5)
5*(3x + 4) = 2*(8x - 1)
15x + 20 = 16x - 2
16x - 15x = 20 + 2
x = 22
2y + 9 = 2*(5 - 3y)
2y + 9 = 10 - 6y
2y + 6y = 10 - 9
8y = 1
y = 1:8
y = 0,125
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
Пошаговое объяснение:
1)
4*(2x - 1) = 3*(3x + 5)
8x - 4 = 9x + 15
9x - 8x = -4 - 15
x = -19
==========
2)
3*(5 - 2y) = 2*(4 + 2y)
15 - 6y = 8 + 4y
4y + 6y = 15 - 8
10y = 7
y = 7:10
y = 0,7
=============
3)
3*(6x - 3) = 5*(2x + 7)
18x - 9 = 10x + 35
18x - 10x = 35 + 9
8x = 44
x = 44:8
x = 5,5
============
4)
-3*(5 + 2y) = 4*(3 - 3y)
-15 - 6y = 12 - 12y
12y - 6y = 15+12
6y = 27
y = 27:6
y = 4.5
===============
5)
5*(3x + 4) = 2*(8x - 1)
15x + 20 = 16x - 2
16x - 15x = 20 + 2
x = 22
=============
2y + 9 = 2*(5 - 3y)
2y + 9 = 10 - 6y
2y + 6y = 10 - 9
8y = 1
y = 1:8
y = 0,125