Answer:
Step-by-step explanation:
1)-2x+8=-3x+14
-2x=-3x+6
x=6
2) (-2)^2-3*5+12
4-15+12
=1
Sum means + difference is division
<span> x + y = 92 </span>
<span> x - y = 20
</span>
2x = 92 +20
<span>2x = 112 </span>
<span>x = 56 </span>
<span>x + y =92 </span>
<span>56 + y = 92 </span>
<span>y = 36
</span><span>'
answer 36 and 56</span>
Answer:
a
Step-by-step explanation:
a
Answer: C
Step-by-step explanation:
For this problem, we can automatically eliminate A, B, and D. If you look at the graphs, each line has a positive slope. In A, B, or D, there is at least 1 slope that is negative. Therefore, C is our answer choice.
Create equivalent expressions in the equation that all have equal bases.<span><span><span>3<span>2<span>(<span>x+2</span>)</span></span></span>=<span>3<span><span>−3</span><span>(<span>x+12</span>)</span></span></span></span><span><span>3<span>2<span>x+2</span></span></span>=<span>3<span><span>-3</span><span>x+12</span></span></span></span></span>Since the bases are the same, then two expressions are only equal if the exponents are also equal.<span><span>2<span>(<span>x+2</span>)</span></span>=<span><span>−3</span><span>(<span>x+12</span></span></span></span>Simplify the left side.<span><span><span>2x</span>+4</span>=<span><span>−3</span><span>(<span>x+12</span>)</span></span></span><span><span><span>2x</span>+4</span>=<span><span>-3</span><span>x+<span>12
</span></span></span></span>Simplify the right side.<span><span><span>2x</span>+4</span>=<span><span><span>−3</span>x</span><span>−36</span></span></span><span><span><span>2x</span>+4</span>=<span><span><span>-3</span>x</span><span>-<span>36</span></span></span></span>
x=<span>−<span>8
</span></span>