Answer:
Step-by-step explanation:
1. isolate x by adding 7 to the other side (7+4)
5x - 7 = 4
5x = 11
2. divide by 5 to get x alone
x = 11/5
Answer:
The product of (-5·q·r) × (-2·p·q·r) × p·q is 10·q³·r²·p²
Step-by-step explanation:
The question relates to the rules of multiplication of variables and indices rules, and simplifification of an expression ;
The given expression is (-5·q·r) × (-2·p·q·r) × p·q
Therefore, we have;
(-5·q·r) × (-2·p·q·r) × p·q = (-5) × (-2) × q×q×q × r×r ×p×p = 10 × q³ × r² × p²
10 × q³ × r² × p² = 10·q³·r²·p²
∴ (-5·q·r) × (-2·p·q·r) × p·q = 10 × q³ × r² × p² = 10·q³·r²·p²
(-5·q·r) × (-2·p·q·r) × p·q = 10·q³·r²·p².
Answer:
x=−1 and y=7
Step-by-step explanation:
Add these equations to eliminate y: 5x=−5
Then solve 5x=−5 for x:
5x=−5
5x/5=−5/5 (Divide both sides by 5)
x=−1
Write down an original equation: 8x+y=−1
Substitute −1 for x in 8x+y=−1: (8)(−1)+y=−1
y−8=−1 (Simplify both sides of the equation)
y−8+8=−1+8 (Add 8 to both sides)
y=7
2/3 = 16/24 if you multiply the top and bottom by 8.
7/8 = 21/24 if you multiple the top and bottom by 3.
7/8 is bigger.
