Question

1)Add: (2x+3y-4z)+ (3x+4z-6y)

2) subtract (2l+4m) from (5m-7l)

3) solve:7y+7 =21

4) solve: 6x =36

5) solve:8m/4=12
if u tell correct answer I mark you as brainest​

Answer 1

Answer:

sry I don't know ans of 1 and 2

Answer 2

1) Add (2x + 3y - 4z) + (3x + 4z - 6y)

= 2x + 3y - 4z + 3x + 4z - 6y
= 2x + 3x + 3y - 6y
= 5x - 3y

2) Subtract (2l + 4m) from (5m - 7l)

= 5m - 7l - (2l + 4m)
= 5m - 7l - 2l - 4m
= 5m - 4m - 7l - 2l
= m - 9l

3) solve 7y + 7 = 21

7y = 21 - 7
7y = 14
y = 14/7
y = 2

4) Solve 6x = 36

6x = 36
x = 36/6
x = 6

5) Solve 8m/4 = 12

8m = 12 x 4
8m = 48
m = 48/8
m = 6

Hope it helps you
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