Question

Soooooo im like superr confuseddd. can someone helpp plssssssssss i mark brainliest i rlly need helpp loll

7/8m – 4/7 – 5/6m = -3/4

4.3v + 10.75 – 4v = 8.11

9/7 + 9/7x – 6/7x = 0

6.9u – 2 – 3.2u – 10 = 2.8

8/5 = -4a + 7/5 – 2/3a

1. haidang
The solutions to the given equations are
m = – 30/7
v = 8.8
x = -3
u = 4
a = -3/70

Solving linear equations

From the question, we are to determine the values of the variables in the equations
7/8m – 4/7 – 5/6m = -3/4
7/8m – 5/6m = -3/4 + 4/7
(21m -20m)/24 = (-21 + 16)/28
m/24 = -5/28
m = (-5×24)/28
m = -120/28
m = – 30/7
4.3v + 10.75 – 4v = 8.11
4.3v – 4v = 8.11 – 10.75
0.3v = -2.64
v = -2.64/0.3
v = 8.8
9/7 + 9/7x – 6/7x = 0
9/7x – 6/7x = -9/7
(9x – 6x)/7 = -9/7
3x/7 = -9/7
3x × 7 = -9 × 7
21x = -63
x = -63/21
x = -3
6.9u – 2 – 3.2u – 10 = 2.8
6.9u – 3.2u = 2.8 + 2 + 10
3.7u = 14.8
u = 14.8/3.7
u = 4
8/5 = -4a + 7/5 – 2/3a
8/5 – 7/5 = -4a – 2/3a
(8-7)/5 = -14/3 a
1/5 = -14/3 a
-14a × 5 = 1 × 3
-70a = 3
a = 3 / -70
a = -3/70
Hence, the solutions to the given equations are
m = – 30/7
v = 8.8
x = -3
u = 4
a = -3/70