Answer:
b .21
d.m= 10
f.c=
h.-3
j.32
l.-10
Step-by-step explanation:ok so this easy enough just take a deep breath
b. x -7 = 4 + 10
= x = 4+10+7 => 21
d. 70 = 7m
=> m = 70/7. =>M= 10
f. 12 – c = 8
=> c = 12-8 => c=4
h. 2y + 3y = 4 – 6 – 13
= > 2y +3y = -15
=> 5y = -15
= > y=-15/5
=> y= -3
j. 8 = m/4
= > m = 8 x 4
=>m= 32
l) f + 4 = –6
= f = -6-4 => -10