Equation, an identity, or a contradiction.
7v+42=11(3v+8)−2(13v−1)
2 answers:
Answer:
48
Step-by-step explanation:
7x+42=11(3x+8)−2(13x−1)
Step 1: Simplify both sides of the equation.
7x+42=11(3x+8)−2(13x−1)
7x+42=(11)(3x)+(11)(8)+(−2)(13x)+(−2)(−1)(Distribute)
7x+42=33x+88+−26x+2
7x+42=(33x+−26x)+(88+2)(Combine Like Terms)
7x+42=7x+90
7x+42=7x+90
Step 2: Subtract 7x from both sides.
7x+42−7x=7x+90−7x
42=90
Step 3: Subtract 42 from both sides.
42−42=90−42
0=48
Answer: contradiction
Step-by-step explanation:
7v+42=11(3v+8)-2(13v-1)
Open the bracket
7v+42=33v+88-26v+2
7v+42=33v-26v+88+2
7v+42=7v+90
Collect like term
7v-7v=90-42
0=48
This shows that
7v+42=7v+90 contradict
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