Answer:
7
Step-by-step explanation:
form a proportion
12/2=42/x
cross multiply
12x=84
x=7
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
x = 38/5
Decimal Form:
x = 7.6
Mixed Number Form:
x = 7/3/5
Answer:
1.x=41
x=9
Step-by-step explanation:
1.x-7=34
x=41
3x-7=20
3x=27
x=9
Answer:
0t=8
Step-by-step explanation:
3t+4=12+3t
3t-3t=12-4
0t=8
Answer:
x<5
Step-by-step explanation:
2x-3>7 you add three to both sides
2x>10 you then divide 2x by 2 and 10 by 2 which switches the symbol around
x<5 that's the answer
