Solve for "x" : 2x + 3x + 4x =36
2 answers:
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Answer:
0
Step-by-step explanation:
Given
- 0.4(3x - 2) + ← substitute x = 4 into the expression
= - 0.4(3(4) - 2) +
= - 0.4(12 - 2) +
= - 0.4(10) +
= - 4 + 4 = 0
For this case we have the following equation:
By completing squares we have:
Step 1:
Add on both sides:
Step 2:
We rewrite the equation:
Step 3:
We solve the equation:
Solutions:
Answer:
the next line would be: