Substitution for both equations is (-3,1)
Answer:
Its a triangle .And the question says triangular
Answer:
Step-by-step explanation:
1. x - 2 = 10
x = 10 + 2 = 12
2. 40 = 5x
40/5 = x
x = 8
3. x/2 = 8
Multiply by 2 on both sides
x = 16
4. x + 14 = 24
x = 24 - 14 = 10
5. x + 2 = 10
x = 10 - 2 = 8
6. x/8 = 1
Multiply by 8 on both sides
x = 8
No 2 5 and 6 is the correct answer
The first step in this equation is to Subtract 18 from both sides of the equation.
Answer:
(-2,3)
Step-by-step explanation:
Step 1. Isolate x for 3x + 5y = 9
3x + 5y - 5y = 9 - 5y
3x = 9 - 5y
3x/3 = 9/3 - 5y/3
x= (9-5y)/3
Step 2. Simplify
-3*((9-5y)/3) + 3y = 15
-3*((9-5y)/3) = 9 - 5y = -(-5 + 9) + 3y
-9+5y+3y
-9+8y = 15
Step 3 Isolate y for -9+8y=15
-9+8y+9=15+9
8y=24
8y/8 = 24/8
y=3
Step 4 Substitute y = 3
x = (9-5*3)/3
-(6/3) = (-2)
x = -2
