Question

3. 5 - Зm = 20
4. 2х - 10 - 3x
6. 2 - За +7= 8а + 3 - а
7. 5х + 2 = 10 + 3x
please give me the answer of this I have urgently need of this answer and I am request it all the the student please answer me the question....... I have a urgently need​

Answer 1

Answer:

1.5-3m=20

-3m=15

m=-5

6. 2-3a+7=8a+3-a

-3a-8a+a=3-7-2

-10a=-8

a=0.8

7.5x+2=10+3x

5x-3x=10-2

2x=8

x=4

Answer 2

Answer:

$a \: )5 - 3m = 20 \\ </strong><strong>-</strong><strong>3m = 20 - 5 \\ </strong><strong>-</strong><strong>3m = 15 \\ m = \frac{15}{</strong><strong>-</strong><strong>3} \\ m = </strong><strong>-</strong><strong>5$

$b \: )2x - 10 = 3x \\ 2x - 3x = 10 \\ x = 10$

$c \: )2 - 3a + 7 = 8a + 3 - a \\ 9 - 3a = 7a + 3 \\ 9 - 3 = 7a + 3a \\ 6 = 10a \\ a = \frac{6}{10}$

$d \: )5x + 2 = 10 + 3x \\ 5x - 3x = 10 - 2 \\ 2x = 8 \\ x = \frac{8}{2} \\ x = 4$