Answer:
3rd one
Step-by-step explanation:
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Step-by-step explanation:
step 1. 12x - 15 - 12x = 7x + 20
step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)
step 3. -15 = 7x + 20 (adding like terms)
step 4. -35 = 7x (subtract 20 from both sides)
step 5. this step is incorrect.
step 6. -5 = x ( divide both sides by 7)
step 7. x = -5 (put the variable first).
Answer:
x = 1
Step-by-step explanation:
the angle 2 is equal to 52, because triangles add up to be 180, and 180 - 76 and divided by two is 52. 52 = 4x + 12. Divide both sides by four, then subtract 12. x = 1
Answer:
Step-by-step explanation:
(-6,7) & m = -2
point slope form of line : y - y₁ = m (x-x₁)
y - 7 = (-2) (x - [-6] )
y - 7 = (-2) (x + 6)
y - 7 = -2x - 2 * 6
y - 7 = -2x - 12
2x + y = -12 +7
2x + y = -5 0r y = -2x - 5
