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

Answers

  1. 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
    Learn more on Solving linear equations here: https://brainly.com/question/1682776
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