Answer:
chill baby girl I gotchu its F=failed
Step-by-step explanation:
Answer: 25.9
Step-by-step explanation:
Solve it using elimination method:
5x+3y=-10
3x+5y=-6
Essentially what you would want to do is eliminate a variable so you have to multiply the two equations so that the two “y”s cancel each other out. You do this by multiplying one by a negative number and the other one a positive number. Doesn’t matter what number you multiply the number with; however, both numbers need to be the same distance away from zero. Also, if you’re going to multiply one term, then all the terms will need to be multiplied.
-5(5x+3y)=-10
3(3x+5y)=-6
Distribute and Multiply:
-25x-15y=50
9x+15y=-18
Now add the two equations by adding the x’s together, y’s, and the total.
The y’s end up canceling each other.
-16x=32
Divide:
X=-2
Now that you have “X” substitute x from one of the equations from the beginning. You may do two for checking answers.
3(-2)+5y=-6
-6+5y=-6
5y=0
Y=0
The answer is:
x=-2
y=0
(-2,0)
Answer:
Step 3: He should have divided both sides by −7
Step-by-step explanation:
Incorrect calculation
−7x + 25 = 48
Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23
Step 3: negative seven times x over seven = twenty-three over seven
-7*x/7 = 23/7
-7x/7 = 23/7
Step 4: x = twenty-three over seven
Correct calculation
−7x + 25 = 48
Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23
Step 3: negative seven times x over seven = twenty-three over seven
-7*x/-7 = 23/-7
-7x/-7 = 23/-7
Step 4: x = twenty-three over negative seven
x = -23/7
Answer:
17
Step-by-step explanation:
8+9 is 17
