x = 3 ; y = 1
Given:
y = -2x + 7
y = 1/3x
Substitute y by its value to find x.
y = y
1/3 x = -2x + 7
x = (-2x + 7) ÷ 1/3
x = (-2x + 7) * 3/1
x = -6x + 21
x + 6x = 21
7x = 21
7x/7 = 21/7
x = 3
Substitute x by its value to solve for y.
y = -2x + 7
y = -2(3) + 7
y = -6 + 7
y = 1
y = 1/3 x
y = 1/3 * 3
y = (1*3)/3
y = 3/3
y = 1
Answer:
91
Step-by-step explanation:
85=last 4 tests
(85+x)/2=88
85+x=176
x=91
Answer:
Step-by-step explanation:
1a= 6/14=3/7
1b= 5/18
2= 1/2 of 7/8=1/2 x 7/8=7/16
Answer:
9
Step-by-step explanation:
for this problem, plug in 2 for every x
2^2 + 5(2) -5
4 + 10 -5= 9
Answer:
all positive numbers and their negatives are opposites. I suppose you could say infinite and zero are also opposites.
Step-by-step explanation:
